May 6, 2010 
Pajek 1.27: Export to SVG modified: picture is drawn
in several layers to make further editing with InkScape easier.

May 1, 2010 
Bug when exporting characters coded as &#dddd; to SVG fixed.
See also: Using Unicode in Pajek's pictures

March 8, 2010 
Minor bug in File/Network/Export Matrix to EPS/ Using Permutation fixed.

February 8, 2010 
Minor change in Fix selected vertices suboption of KamadaKawai drawing.

February 4, 2010 
Bug in Brokerage roles fixed.

January 1, 2010 
Pajek 1.26: Proportional reduction of error reported as result of partitioning signed networks.

November 17, 2009 
Several minor changes in reporting results of partitioning signed networks included.

October 8, 2009 
Possibility to use larger / smaller shapes in Export matrix to EPS added.

October 6, 2009 
Possibility to use thicker lines for dividing clusters in Export matrix to EPS added.

October 1, 2009 
Dotted lines for dividing clusters in greyscale Export matrix to EPS added.

September 25, 2009 
Procedure for symmetricacyclic decomposition modified to enable macro execution.

September 21, 2009 
Parameter Large Network added to Options/ReadWrite.
When number of vertices is larger than this value, additional questions or warnings appear during Pajek execution.

September 9, 2009 
Nets/CrossIntersection and Nets/Intersection generalized to take line values into account
(Add, Sub, Mul, Div, Min, Max, 1st, 2nd).

September 3, 2009 
Net/Transform/Remove/Triangle added (removing arcs belonging to upper or lower triangle).

September 2, 2009 
Net/Transform/Line Values/Constant added (min or max of line value and selected constant).

July 16, 2009 
Pajek 1.25: Attraction rates added to report of relaxed balance procedures.

May 28, 2009 
Diamonds in GreyScale added
to Export matrix to EPS.

April 15, 2009 
Vector/Make 2Mode Network added.

April 14, 2009 
Vector/Transform/Invert added.

April 13, 2009 
Operations/Vector/Vector#Network generalized to 2mode networks.

April 6, 2009 
Operations/Vector/Network*Vector generalized to 2mode networks.

April 3, 2009 
Average Degree added to Info/Network/General.

March 2, 2009 
Saving Ore graph to GEDCOM file implemented.
Ore graph must be stored in format defined by Klaus Hamberger:
1Wi.Hu , 2Mo.Da, 3Mo.So, 4Fa.Da, 5Fa.So.
Example.
The other possible format is Pajek Ore graph: 1Fa.Ch, 2Mo.Ch, 3HuWi (edge), or 1Pa.Ch, 3HuWi (edge).

January 5, 2009 
Binary partition containing vertices on Critical path added as result of CPM.

January 4, 2009 
Partitions/Merge implemented.

January 1, 2009 
Pajek 1.24: Layout/KamadaKawai/Separate Components
for drawing networks containing several disconnected components implemented.

November 22, 2008 
ZoomOut added to Draw window menu (visible only when zooming in layout).

November 16, 2008 
Layout/Tile Components implemented.

November 15, 2008 
Minor bug in Layout/Energy/KamadaKawai/Selected group only fixed.

October 9, 2008 
Bug when loading INI files containing external tools fixed.

October 1, 2008 
Reporting lines in input file causing errors when reading partitions and vectors added.

July 23, 2008 
Options/Mark Vertices Using/Vector Values generalized for drawing with two vectors.

April 1, 2008 
Pajek 1.23: Bug in blockmodeling 2mode networks starting with given partition fixed.

February 26, 2008 
Net/Partitions/Depth/Generational implemented.

February 18, 2008 
Possibility to prespecify types of blocks in partitioning signed networks implemented:
by entering letters P, N, or 0 to cells
to require positive, negative or null blocks or leaving cells empty
(in this case the block can be of any type).

February 4, 2008 
Net/Transform/2Mode to 1Mode/Cols=0 added.

January 2223, 2008 
Workshop on Pajek at Sunbelt XXVIII Social Networks Conference, St. Pete Beach, Florida, USA 
January 16, 2008 
Pajek 1.22:
File/Network/Export Matrix to EPS/Labels on Top/Right added.

January 5, 2008 
Generating Godparent or Godfather and
Godmother relations when reading GEDCOM as Ore graph added.

December 15, 2007 
Several additional parameters added to Operations/Balance* procedure.

October 29, 2007 
Diamonds for Negative Values added to exporting matrices to EPS
(possibility to use diamonds for negative values to distinguish them also in black and white printing).

October 28, 2007 
In relaxed relocation algorithm for partitioning signed graphs
null blocks can be used in addition to positive and negative blocks.

October 10, 2007 
Reduction according to Subdivisions generalized to multiple relations
and valued networks.

October 5, 2007 
Pajek 1.21: Problems with filenames containing spaces in log and mcr files solved.

September 10, 2007 
Redraw after moving and redraw on paint
added to Options/Layout/Redraw menu.

September 8, 2007 
Entering numerical data in Export/Options changed.

August 28, 2007 
Shrinking networks generalized to multiple relations networks.

August 18, 2007 
Maximum number of constraints in blockmodeling raised from 50 to 1000.

August 15, 2007 
Only straight lines
added to Export/Options (drawing bidireced and multiple lines without curves).

August 1, 2007 
Another algorithm for partitioning signed 1mode graphs implemented
(relaxed balance: no distinction between diagonal and offdiagonal blocks: each block can be positive or negative).

July 1, 2007 
Bug in Clustering with relational constraint procedure fixed.

June 26, 2007 
Pajek 1.20: Net/Hierarchical Decomposition/Clustering with Relational Constraint implemented.

June 14, 2007 
Create Null Partition generalized to Create Constant Partition and
Create Identity Vector generalized to Create Constant Vector.

June 11, 2007 
Relocation algorithm for partitioning signed graphs extended to
work with 2mode networks.

June 9, 2007 
Generating random 2mode partitions implemented.

May 30, 2007 
Vector/Transform/Normalize/Standardize implemented.

May 22, 2007 
Possibility to add loops determined by vector as arcs or edges added.

May 16, 2007 
Problem with running Pajek from write protected directories fixed:
Add text file pajek.dir to the directory containing Pajek.exe.
The contents of the file is the name of working (nonwrite protected)
directory.

May 15, 2007 
Extracting 2mode network from ordinary 1mode network according to
given clusters of partition implemented.

May 7, 2007 
WAIT and EMPTYREPORT added to list of macro commands.

May 2, 2007 
Exports to SVG modified so that HTML checkboxes are functional also in Mozilla Firefox.

May 12, 2007 
Workshop on Pajek at Sunbelt XXVII
Social Networks Conference, Corfu, Greece. 
April 8, 2007 
Pajek 1.19: Min, Max, and Cover with added to Partitions menu.

April 5, 2007 
Operations/Transform/Add/Time Intervals determined by Partitions implemented 
changing network to temporal network using two partitions  first partition determines initial time point,
second determines terminal time point of each vertex.

April 1, 2007 
Additional output in Report window for Intersection of Partitions generated.

March 25, 2007 
Euclidean, Manhattan, Canberra, (1Cosine)/2
dissimilarities among Vectors determined by Cluster implemented 
dissimilarities are computed as line values of given network.

March 16, 2007 
Operations/Dissimilarity/Network based/Options/Among all linked Vertices only implemented 
dissimilarities are computed as line values of given network.

March 4, 2007 
Net/Partitions/Valued Core/2Mode implemented.

February 24, 2007 
Pajek 1.18: Some minor bugs fixed.

February 3, 2007 
Fusion of Permutations implemented.

January 14, 2007 
Generalized blockmodeling of 2mode networks implemented.

December 23, 2006 
Possibility to edit (add, remove) constraints in generalized blockmodeling procedure added.

November 10, 2006 
Pajek 1.17:
Export to X3D
(XML based 3D computer graphics, the successor of VRML) implemented.

October 24, 2006 
Export to kinemages updated to be compatible with
KiNG
(successor of Mage).

October 23, 2006 
Export/Append to Pajek project file added. The export can be used by program
for visualization of temporal networks in SVG:
PajekToSVGAnim.

October 7, 2006 
Pajek 1.16:
Options/Colors/Partition Colors/for Font added.

September 25, 2006 
Addittional parameters for color and size of font in macro commands DRAW, EPS, SVG and BITMAP included.
See Execute.htm.

September 24, 2006 
Options/Size/of Font/Use Third Partition for FontSize implemented
(used in Draw window, Bitmap, EPS and SVG export).

September 20, 2006 
Options/Colors/Font/Vertices/Use Second Partition for FontColor implemented
(used in Draw window, Bitmap, EPS and SVG export).

August 12, 2006 
Net/Transform/Bidirected Arcs > Arcs implemented.

July 25, 2006 
Pajek 1.15:
Additional suboption in transforming Partition to Hierarchy added.

July 12, 2006 
Export to SVG with checkboxes included in SVG (standalone SVG without HTML).
See: sample SVG file.
Works with Internet Explorer and plain Mozilla.

June 22, 2006 
Saving networks in GraphML file format (XML based) added.

May 22, 2006 
Net/Partitions/Core/2Mode Border implemented.

April 18, 2006 
Pajek 1.14:
Net/Transform/Add/Default Vertex Labels added.

April 16, 2006 
Check equality of vertex (line) descriptions by reading added
to Options/ReadWrite
(unchecking the option speeds up reading large networks having many different descriptions of vertices/lines,
e.g. time stamps for temporal networks).

April 15, 2006 
Net/Transform/Generate in Time/Interval implemented.

April 12, 2006 
Bug when computing 2mode density for very large networks fixed.

April 2, 2006 
Vectors/Fuse Vectors implemented.

March 27, 2006 
Pajek 1.13:
Several draw commands written to log file (possibility to include them in batch executions).
Details.

March 21, 2006 
Exports to output fomats (EPS, SVG, VRML, Kinemage, MDLMOL, Bitmap) written to log file (possibility to include exports in batch executions).
Details.

March 7, 2006 
Export to SVG modified to be functional in Mozilla Firefox.

February 12, 2006 
Export/Options/Use RGB colors instead of CMYK implemented.

February 2, 2006 
Pajek 1.12:
Net/Transform/Remove/Selected Vertices implemented.

January 24, 2006 
Partition/Make Network/2Mode Network implemented.

January 22, 2006 
Layout/Circular/using Partition implemented:
drawing vertices on several circles according to selected partition.

January 18, 2006 
Info/Network/Vertex Label > Vertex Number added.

January 15, 2006 
Bug when loading Pajek INI files fixed.

January 1214, 2006 
Pajek presented at Ars Electronica Festival, Linz, Austria. 
January 6, 2006 
Minor change in presenting result of hierarchical clustering as Hierarchy made.

January 5, 2006 
Transforming Hierarchy to Permutation (Hierarchy/Make Permutation) implemented.

January 4, 2006 
Changing positions of nodes (pushing nodes up and down within level) in hierachy implemented.

January 3, 2006 
Transforming 2Mode network with the same subsets of vertices
to 1Mode network implemented (Net/Transform/2Mode to 1Mode/Rows=Cols).

January 2, 2006 
Transforming any network to 2Mode network
(both subsets of vertices in obtained 2Mode network are the same) implemented
(Net/Transform/1Mode to 2Mode).

January 1, 2006 
Pajek 1.11:
Possibility to use the Second Vector for heights of vertices added
(Draw/Draw2Vectors and Draw/DrawPartition2Vectors).

December 28, 2005 
Additional Comboboxes for Second Network,
Second Partition, Third Partition, Second Vector and Second Permutation
added in main Pajek window.
Calling operations with two objects of the same type changed.

December 4, 2005 
Possibility to place multiline labels using \n
on vertices and edges/arcs, e.g. Label1\nLabel2
(in Draw window, EPS and SVG).

November 3, 2005 
Net/Transform/Multiple Relations/Generate 3Mode Network added 
generating 3mode networks from ordinary or 2mode multirelatinal networks.

November 2, 2005 
Bug when exporting networks using partitions to SVG fixed.

November 1, 2005 
Pajek 1.10:
Possibility to generate vertices as WWW anchors in SVG and VRML
if URL is used in their description.
See: sample NET file.

October 25, 2005 
Calling the browser with specified URL
when clicking with Shift and Right mouse button on the vertex
in Draw window added. See: sample NET file.

October 24, 2005 
Possibility to select default web browser added to Tools menu.

October 2021, 2005 
Pajek presented at
Applications of Social Network Analysis 2005, Zurich, Switzerland. 
October 15, 2005 
Bug when exporting to EPS fixed. If labels of vertices or lines
contain characters ( or ) they are replaced by
{ or }.

October 14, 2005 
Possibility to generate multirelational networks from 2mode networks added
(if option Multiple Lines is checked and Partition of the same dimension
as Network is selected).

September 29, 2005 
Possibility of storing complete description of vertices added to Options/ ReadWrite
(otherwise: if consequent vertices have same descriptions, e.g. shapes, time intervals...
description is omitted).

September 1821, 2005 
Pajek presented at
Applied Statistics 2005, Ribno, Slovenia. 
September 14, 2005 
Bug in intersection and difference of undirected networks fixed.

September 8, 2005 
2Mode Density added to Info/Network/General.

September 1, 2005 
Pajek 1.09: Bug when generating 2Mode networks in time fixed: results are 2mode networks.

August 28, 2005 
Net/Partitions/Core/2Mode Review implemented.

August 26, 2005 
Displaying small networks as matrices in Pajek report window modified to
handle 2mode networks.

August 24, 2005 
Counting shortcuts in 4rings added.

August 23, 2005 
Triangles renamed to 3rings, tetrads renamed to 4rings.
Some modifications in 3rings (to make results compatible with 4rings).

August 21, 2005 
Net/Partitions/Core/2Mode implemented.

August 14, 2005 
Pajek 1.08: Intersection of networks renamed to CrossIntersection,
Difference of networks renamed to CrossDifference.
New Intersection and Difference menu options added (taking relation numbers into account).

August 12, 2005 
Net/Transform/Multiple Relations/ Change Relation Number  Label
generalized to enable selection of several relations, e.g. 13,6,1015
(useful for recoding, fusing,...).

August 7, 2005 
Counting undirected, cyclic, diamonds, genealogical, transitive,
and all types of tetrads to which each line belongs implemented
(see manual).

August 1, 2005 
Reduction according to degree generalized to select cluster
of vertices on which to perform operation (e.g. one mode of 2mode network).

July 31, 2005 
Extracting subnetworks modified to retain information about 1 and 2 mode networks. 
July 28, 2005 
Maximum number of objects in log and macro files increased from 10000 to 10000000. 
July 15, 2005 
Pajek 1.07: Possibility to rename Pajek objects (networks, partitions...) in Pajek window added
(e.g., File/Network/Change Label).
Set of macros
Kinship for calculating kinship relations in genealogies
added. 
July 13, 2005 
Partition/Make Cluster
changed to enable selecting noncontiguous ranges in partition. 
June 27 2005 
Possibility to define multiple relation temporal networks using matrix format added. 
June 9, 2005 
Pajek 1.06: Change in BowTie partition
(see manual). 
May 15, 2005 
Some minor bugs fixed. 
May 4, 2005 
Change in removing multiple lines for multirelational networks:
only multiple paralel lines belonging to the same relation
are replaced by a single line belonging to that relation.

May 1, 2005 
Pajek 1.05: Net/Transform/Remove/all arcs from each vertex except/k with highest (lowest) line values implemented.

April 28, 2005 
Gender partition as additional result of reading GEDCOM files as Ore graphs added.

April 27, 2005 
Multiplying large sparse 2mode networks (Nets/Multiply First * Second) implemented.

April 23, 2005 
Net/Partitions/2Mode implemented (partition of vertices of a 2mode network into two subsets).

April 22, 2005 
Net/Transform/Transpose/2Mode implemented.

April 21, 2005 
Change in internal presentations and reading 2Mode networks.

April 20, 2005 
Net/Numbering/Reverse CuthillMcKee implemented.
(See paper: RCM algorithm).

April 19, 2005 
Net/Transform/Remove/multiple lines/Single Line implemented.

April 18, 2005 
Fusing selected cluster numbers of partition to a new cluster number (Partition/Fuse Clusters) implemented.

April 17, 2005 
Multiplying large sparse 1mode networks (Nets/Multiply First * Second) implemented.

April 1315, 2005 
Pajek presented at DSI 2005, Portorož, Slovenia. 
April 1, 2005 
Pajek 1.04: Change in structural holes result: aggregate constraint of isolated vertices is 1 now (before it was 0).

March 23, 2005 
Bugs when exporting large matrices to EPS and drawing large dendrograms fixed.

February 25, 2005 
New button added to color table for partition and relation numbers.

February 24, 2005 
Additional option in fragment searching added
(Check relation number).

February 23, 2005 
Transforming network to a multiple relation network using a partition implemented
(Operations/ ExpandPartition/ Make Multiple Relations Network) .

February 16, 2005 
Workshop on Pajek at Sunbelt XXV
Social Networks Conference, Redondo Beach, CA, USA. 
January 22, 2005 
Minor bug when drawing dotted arcs in Draw window fixed.

January 15, 2005 
Pajek 1.03: Operations/Functional Composition/?*? added.

January 12, 2005 
Options/Lines/Draw Lines/Relations
changed to enable displaying noncontiguous relations.

January 7, 2005 
Minor change in strong components algorithm  result is a canonical partition.

January 6, 2005 
Net/Transform/Multiple Relations/Extract Relation(s) changed to enable
extracting noncontiguous relations.

January 6, 2005 
Possibility of selecting noncontiguous ranges in partition (e.g. 13,6,1015) added
(used for example when extracting subnetworks).

January 5, 2005 
Extracted partition as additional result of extracting network according to partition added.

January 4, 2005 
Net/Transform/Sort Lines/Line Values added.

December 10, 2004 
Checkbox Export options overwrite shapes file added to Export/Options.

December 7, 2004 
Minor change when reading GEDCOM files as Ore graphs.

December 1, 2004 
Problem with long description of vertices (time stamps) fixed.

November 27, 2004 
Possibility to select colors from the list instead of typing names of colors
added in Export/Options.

November 22, 2004 
Pajek 1.02: Net/Transform/Multiple Relations/ Change Relation Number  Label added.

November 21, 2004 
Net/Transform/Multiple Relations/ Relation Numbers>Line Values added.

November 20, 2004 
Net/Transform/Multiple Relations/ Line Values>Relation Numbers added.

November 19, 2004 
Reading GEDCOM files (Ore, pgraph, bipartite pgraph) changed to produce multiple relations network.

November 17, 2004 
Computing biconnected components changed to produce additional result
 partition of lines coded as multiple relations network.

November 16, 2004 
Export/Kinemages/Multiple Relations Network added.

November 16, 2004 
Color table for relation numbers (Options/Colors/Relation Colors) added.

November 15, 2004 
Options/Colors/Edges/Relation Number and Options/Colors/Arcs/Relation Number
added  possibility to color lines according to their relation number.

November 15, 2004 
Edit/Network extended with relation number of each line and possibility to change it.

November 14, 2004 
Reading and saving time events networks modified to support multiple relations.
See sample TIM file.

November 14, 2004 
Options/Lines/Draw Lines/Relations added (showing/hiding lines belonging to selected relations).

November 13, 2004 
Net/Transform/Multiple Relations/Canonical Numbering added.

November 13, 2004 
Nets/Union of Lines changed to produce multiple relations networks.

November 12, 2004 
Info/Network/Multiple Relations added.

November 12, 2004 
Reading and saving Ucinet DL files changed to produce multiple relations networks.

November 12, 2004 
Exporting networks containing multiple relations to SVG added.

November 11, 2004 
Net/Transform/Multiple Relations/Extract Relation(s) added
(extracting one or all relations from multiple relations network).

November 10, 2004 
Reading and saving networks containing multiple relations added.
See: sample NET file (*Arcs/*Edges),
sample NET file (*Arcslist/*Edgeslist),
sample MAT file (*Matrix)
with 10 relations.

October 1, 2004 
Pajek 1.01: Net/Transform/Line Values/Add Constant and Vector/Transform/Add Constant added.

September 21, 2004 
Minor bug in triangles count fixed.

September 21, 2004 
Exporting SVG without background enabled (if Bckg. and Border Colors are set to 'No'
in Export/Options).

September 8, 2004 
Change in closeness and betweenness centrality algorithms (important for very large networks only).

September 17, 2004 
Pajek presented at Ars Electronica Festival, Linz, Austria. 
September 5, 2004 
Change in writing log files for fragment searching.

August 1825, 2004 
Pajek presented at Santa Fe Institute, New Mexico, USA. 
August 1, 2004 
Additional suboption in fragment searching added
(Repeating vertices in fragment allowed).

July 25, 2004 
Possibility to sort lines according to line values before exporting to EPS/SVG added
to Export/Options (put lines with the highest values 'on the top'
and made them in this way visible).

July 16, 2004 
Additional suboption in fragment searching added
(Retain all vertices after extracting).

July 1, 2004 
Pajek 1.00: Calling statistical package SPSS with Pajek networks, partitions, and vectors implemented
(Tools/SPSS/Send to SPSS).

June 12, 2004 
Minor changes in Editing Partition and Vector.

May 29, 2004 
Additional option in fragment searching added
(Same vertices determine one cluster at most).

May 21, 2004 
Arrows added when exporting directed graphs to Mage.

May 19, 2004 
Bug in fragment searching fixed.

May 17, 2004 
Bug when optimizing layers fixed.

May 12, 2004 
Workshop on Pajek at Sunbelt XXIV
Social Networks Conference, Portorož, Slovenia. 
April 21, 2004 
Pajek 0.99: Info/Network/General and Partition/Canonical Partition speeded up.

April 19, 2004 
Partition/Canonical Partition [Decreasing frequencies] added.

April 18, 2004 
Possibility of storing network files without coordinates of vertices added to Options/ ReadWrite
(important for large networks).

April 17, 2004 
Algorithm for computing islands [line weights] improved.

April 1416, 2004 
Pajek presented at DSI 2004, Portorož, Slovenia. 
April 10, 2004 
Number of multiple lines added to Info/Network/General.

April 7, 2004 
Pajek 0.98: Additional vector(s)
storing 'constants' of each repetition generated
when running Macro/Repeat Last Command
(e.g. centralization indices, network densities, number of components,
vector arithmetic means, standard deviations...)

April 1, 2004 
Two vectors (empirical and expected counts) as additional result of triadic census added.

March 25, 2004 
TMemo object replaced by TRichEdit in Report window.

March 20, 2004 
When running Pajek commands Info*
are stored in log files as well
(possibility to include Infos in log/macro and repeating last command).

March 18, 2004 
Possibility to execute commands on sequences of objects
(e.g. networks) added (Macro/Repeat Last Command).

February 20, 2004 
Some minor bugs fixed. 
January 27, 2004 
Pajek 0.97: BowTie partition added.

January 26, 2004 
Partition as additional result of degree reduction added.

January 25, 2004 
Format for displaying spent time changed to hh:mm:ss form.

January 23, 2004 
Algorithms for generalized cores added
(Net/Vector/PCore).

January 21, 2004 
Some controls in algorithms for computing Clustering Coefficients added.

January 19, 2004 
Better algorithms for computing islands included.

January 15, 2004 
Bug in macro execution fixed.

January 12, 2004 
Several minor improvements done.

January 1, 2004 
Pajek 0.96: Step when rotating layouts changed from integer to real number
(to enable slower rotations).

December 15, 2003 
Computing periodic strongly connected components implemented.

November 2122, 2003 
Workshop on Pajek at EHESSINED, Paris, France. 
October 23, 2003 
Pajek 0.95: Problem with running Pajek in labs with write protected directories fixed.

September 21, 2003 
Operations/Transform/Remove Lines/Inside Clusters with value/lower than Vector value added 
Removing all lines inside clusters (determined by a Partition) with value lower/higher than the
value specified in a Vector.

September 20, 2003 
Partition/Count, Min/Max Vector added  info about cluster frequencies
and minimum and maximum vector value according to given partition.

September 18, 2003 
Net/Vector/Summing up Values of Lines,
Net/Vector/Min of Values of Lines and
Net/Vector/Max of Values of Lines added.

September 1517, 2003 
Application of Pajek presented at International Conference on
Methodology and Statistics, Ljubljana, Slovenia. 
September 10, 2003 
Pajek 0.94: Another two approaches for finding cohesive clusters (islands) in large networks
with values of vertices determined by vector implemented
(Operations/Vector/Islands).

September 9, 2003 
Minor change in CPM procedure.

August 29, 2003 
Efficient approach for finding cohesive clusters (islands) in large
valued networks implemented (Net/Partitions/Islands  Line weights).

August 26, 2003 
Function savenetwork (storing R matrix in *Arcs format to be read by Pajek)
generated when R is called.

August 25, 2003 
Calling statistical package R with Pajek networks speeded up.

August 20, 2003 
Pajek 0.93:
Operations/Transform/Vector(s) > Line Values added  replacing line values with
result of selected operation of vector(s) values in the corresponding terminal and initial vertices.

July 26, 2003 
Possibility to extract parts of the network without generating new network implemented
(important for very large networks).

July 16, 2003 
Distribution of distances and average path length among vertices in network implemented.

July 10, 2003 
Pajek 0.92: Several minor bugs fixed.

May 15, 2003 
Computing closeness centrality generalized to non strongly connected networks.

May 1, 2003 
Net/Transform/Add/Line Labels as Line Values added.

April 15, 2003 
Pajek 0.91: Transforming Permutation to Vector implemented.

April 13, 2003 
Changes in All Degree partition (edges are counted only once).

March 13, 2003 
Removing lines with values in specified interval implemented.

March 12, 2003 
Maximum distance as input parameter when
computing kneighbours for selected cluster added.

March 8, 2003 
Options/ReadWrite/Read vertices labels
and Net/Transform/Add/Vertex Labels from File
for manipulation of very large networks added. 
March 2, 2003 
Several minor changes/improvements made. 
February 21, 2003 
Functions: loadvector and loadmatrix (loading to R vectors and matrices produced by Pajek)
generated when R is called. 
February 12, 2003 
Workshop on Pajek at Sunbelt XXIII
Social Networks Conference, Cancun, Mexico. 
February 9, 2003 
When exporting networks to R labels of vertices are exported as well.

February 8, 2003 
Pajek 0.90:
Functions: savevector and savematrix (storing R objects to be read by Pajek)
generated when R is called.

February 7, 2003 
Calling statistical package R with Pajek networks added.

February 5, 2003 
Pajek 0.89:
Calling statistical package R
with Pajek vectors implemented
(Tools/Program R/Send to R).

January 27, 2003 
Possibility to select external programs which can be called from
Pajek added (see Tools). For running Pajek from other
programs see
How to run Pajek ...

January 23, 2003 
Pajek 0.88: Options/Mark Vertices Using/Partition Clusters
and Vector Values changed to radio items
(possibility to combine with other types of marking vertices).
See also corresponding exports to SVG/EPS. 
December 22, 2002 
Additional greyscale colors added to partition colors
(see: Options/Colors/Partition Colors in Draw window). 
December 12, 2002 
Genetic structure of acyclic networks implemented. 
December 7, 2002 
Additional warnings when reading corrupted PC file formats included. 
November 29, 2002 
Pajek 0.87: Recoding line values moved from
Info/Network/Line Values to Net/Transform/Line Values/Recode. 
November 27, 2002 
Possibility to draw lines in greyscale proportional to line values added
(Options/Lines/GreyScale). 
November 26, 2002 
Option for transformation of line values
(Net/Transform/Line Values) with several suboptions added. 
November 25, 2002 
Additional colors (Gray05, Gray10,...,Gray90, Gray95) defined.
See: Crayola Colors 
November 18, 2002 
Some modifications and normalizations in algorithms
for computing citation weights added. 
November 15, 2002 
Adding arcs from selected vertex to Cluster and vice versa implemented
(useful for transformations of acyclic networks). 
November 5, 2002 
Bug when drawing using autosize of vertices fixed. 
November 2, 2002 
Pajek 0.86: Scale free random network generator added. 
October 29, 2002 
Generating directed random network with input and output degrees determined by
selected two partitions implemented
(Partitions/Make Random Network). 
October 27, 2002 
Generating undirected random network with degrees determined by partition implemented
(Partition/Make Random Network/Undirected). 
October 25, 2002 
Travelling Salesman Problem algorithm (3OPT) added. 
October 20, 2002 
Some minor bugs fixed. 
October 15, 2002 
Additional vector (INDI numbers) as result of reading GEDCOM files as Oregraph added. 
August 31, 2002 
Pajek 0.85: SPNP method for citation networks added. 
August 16, 2002 
Citation weights algorithms speeded up and modified to handle large networks. 
August 12, 2002 
In Draw Window
Options/Mark Vertices Using/Selected Group
generalized to
Options/Mark Vertices Using/Cluster Only
(only vertices belonging to
the current Cluster are labeled in the layout). 
June 2429, 2002 
Application of Pajek presented at 17th MATH/CHEM/COMP Conference on the
Interfaces among Mathematics, Chemistry and Computer Sciences,
Dubrovnik, Croatia. 
June 14, 2002 
Pajek 0.84: Murtagh's 'clumping' algorithm for generating permutations of 1Mode and 2Mode networks implemented.

June 15, 2002 
Murtagh's 'seriation' algorithm for generating permutations of 1Mode and 2Mode networks implemented.

June 14, 2002 
Generating random permutation of 2Mode network implemented.

June 12, 2002 
Minor bug in core procedure fixed.

May 28, 2002 
Possibility to mark vertices using partition clusters added (in Draw window).

May 26, 2002 
Controls to disable too large vertices and too thick lines and arrows
when drawing vertices of different sizes and lines of different widths added.

May 23, 2002 
Pajek 0.83: Adjusting vector to shrunken network according to given partition
(Vector/Shrink Vector) added.

May 21, 2002 
Shrunken partition as additional result of shrinking network according to partition added.

May 17, 2002 
Removing arcs or edges between selected two clusters implemented.

May 3, 2002 
Counting undirected, transitive,
cyclic and other types of triangles to which each line belongs implemented.

April 10, 2002 
Pajek 0.82: The highest possible number of
vertices that Pajek can handle increased to 9.999.997.
Be careful: missing values are 9.999.998 and 9.999.999 now!

April 8, 2002 
Fusion of two partitions added.

April 7, 2002 
Algorithms for computing
strongly, weakly and biconnected components speeded up significantly.

March 26, 2002 
Some error checks in reading networks from input file added.

March 13, 2002 
Pajek 0.81: Additional vectors (INDI, FAMS and FAMC numbers) as result of reading GEDCOM files as pgraph added. 
March 10, 2002 
ErdosRenyi random graph generator speeded up and generalized to directed, acyclic,
bipartite and 2mode networks.

March 8, 2002 
Problems with running Pajek from write protected disks (floppy, CD) fixed.

March 6, 2002 
Pajek 0.80: Algorithm for computing
cores speeded up significantly (algorithm contributed by
Matjaž Zaveršnik).

January 14, 2002 
Several minor bugs fixed.

December 26, 2001 
Pajek 0.79: File/Network/Export Matrix to EPS/ Original and Using Permutation
extended to 2mode networks.

December 18, 2001 
Pajek 0.78: Missing values (999998) excluded from Crosstabulations
(Partitions/Info/Cramer's V, Rajski)

December 11, 2001 
Info/Network/Line Values extended to enable generating new network
with line values recoded according to selected grouping.

December 10, 2001 
Multiplying incoming/outgoing arcs by corresponding vector values
(Operations/Vector/Vector # Network) implemented.

December 9, 2001 
Storing values of loops from network to vector (Net/Vector/Get Loops)
and adding loops defined by vector to network (Operations/Vector/Put Loops) implemented.

November 30, 2001 
Minor bug in SVG export fixed.

November 26, 2001 
Pajek 0.77: Computing Clustering Coefficients included
(Net/Vector/Clustering Coefficients).

November 12, 2001 
Possibility to select the position of sublabel that is shown
in network layouts (Options/Layout/Show SubLabel). 
November 7, 2001 
Possibility (in Draw window) to select border colors or use border colors
of vertices defined on input file.
Example NET file with different colors
of vertices, vertices borders and arcs. 
November 4, 2001 
Pajek 0.76: Possibility to draw lines having widths proportional to line values added
(Options/Lines/Different Widths).

November 3, 2001 
Bug in hierarchical clustering fixed.

November 2, 2001 
Horizontal ScrollBar added in Edit/Network window.

October 17, 2001 
Possibility to run Pajek by clicking
*.NET or *.PAJ files extended.

October 14, 2001 
Submenu structure of Info in Draw window simplified.

October 9, 2001 
Pajek 0.75: Several minor bugs fixed.

September 5, 2001 
Pajek 0.74: Computing the shortest path length matrix and the geodesics count
matrix (for small networks only!) included.

September 4, 2001 
Additional documentation for EPS, SVG and VRML export options
(see EpsDef.htm).

September 3, 2001 
Possibility to export vertices labels (EPS and SVG) concentrically added in
Export/Options (Label Angle must be >= 360).

September 1, 2001 
Possibility to show all vertices in selected node and its subtree
of hierarchy in Edit/Hierarchy added.

August 27, 2001 
Putting vector as polar radius or polar angle of vertices in network layout added.

August 26, 2001 
Problem with non refreshing background color of Draw window
and some minor bugs in Draw window fixed.

August 25, 2001 
Possibility to get values [from rank ... to rank] in
Info/Network, Partition and Vector added.

August 24, 2001 
Possibility to use autosize of vertices added in Draw window.

August 23, 2001 
Rajski coefficient (measure of functional dependency of two partitions) added.

August 22, 2001 
ErdosRenyi random graph generator added.

August 21, 2001 
Computing diffusion partition according to thresholds given in vector added.

August 20, 2001 
Corrected Euclideanlike and Manhattanlike dissimilarities added.

August 18, 2001 
Permutation as additional result of hierarchical clustering procedure
and possibility of changing parameters when drawing dendrograms added.

August 17, 2001 
Expected triad counts and chisquare test added to triadic census algorithm.

August 15, 2001 
Some changes in Info/Vector.

August 14, 2001 
Pajek 0.73: Displaying network in matrix form added.

August 8, 2001 
Hierarchical clustering (for small networks only!) included.

August 5, 2001 
Creating complete cluster of selected dimension added.

July 25, 2001 
Generalized blockmodeling (for small networks only!) included.

July 20, 2001 
Additional option for reading genealogy as Ore graph added
(different arcs for descent through a male or a female).

July 19, 2001 
Main path(s) as result added to citation weights procedures.

June 2530, 2001 
Application of Pajek presented at 16th MATH/CHEM/COMP Conference on the
Interfaces among Mathematics, Chemistry and Computer Sciences,
Dubrovnik, Croatia. 
June 20, 2001 
Pajek 0.72: Number of times that each vertex belongs to a fragment as additional result of fragments searching added.

June 15, 2001 
Converting network to directed network where all arcs are pointing from
lower to higher class number (or vice versa) according to partition implemented.

June 1, 2001 
Pajek 0.71: Counting brokerage roles in network according to partition added. 
May 28, 2001 
Removing lines between clusters implemented. 
May 16, 2001 
Structural Holes (Burt's measure of constraint) algorithm added.

April 2528, 2001 
Pajek presented at Sunbelt XXI Conference
on Social Networks, Budapest, Hungary. 
April 1821, 2001 
Pajek presented at DSI 2001, Portorož, Slovenia. 
April 10, 2001 
Pajek 0.70: Frequency distribution of vector values in Info/Vector added.

April 8, 2001 
Transforming vector into partition using selected thresholds generalized (number of classes can be given).

April 6, 2001 
Some minor bugs fixed.

April 4, 2001 
Number of Lines as an option for removing multiple lines added.

March 21, 2001 
Pajek 0.69: Export/SVG/Current and all Subsequent 
exporting series of networks / partitions / vectors
to SVG added.

March 19, 2001 
Export/Kinemages/Current and all Subsequent generalized to take selection of
Options/ Previous/Next/ Apply to in Draw window into account.

March 14, 2001 
Pajek 0.68: Info/Network/Line Values added:
frequency distribution of line values.

March 11, 2001 
Small modifications in shrinking procedures.

March 6, 2001 
Small modifications in exporting to SVG according to line values.

March 1, 2001 
Pajek 0.67: Possibility to select partition colors
(see Options/Colors/Partition Colors in Draw window).

February 27, 2001 
Autosaving position and some modifications of Options window implemented.

February 26, 2001 
Possibility to move class 0 with mouse in Draw window added.

February 25, 2001 
Minor bug when expanding partition fixed.

February 24, 2001 
Some minor bugs when reading input files fixed.

February 14, 2001 
Pajek 0.66: Possibility to include 3D effects on vertices added
(see Export/Options in Draw window).

February 12, 2001 
Some additional controls when reading input files added.

February 10, 2001 
Subnetwork containing fragments as additional result of fragments searching added.

February 7, 2001 
Pajek 0.65: KamadaKawai algorithm speededup significantly.

February 5, 2001 
Some normalisations of 1Mode networks obtained from 2Mode networks added.

February 2, 2001 
Minor bug when computing additional results of bicomponents fixed.

January 27, 2001 
Valued network as a result of dissimilarities procedure added.

January 24, 2001 
Pajek 0.64: Changes in algorithm for Spearman and Pearson correlation
(excluding values 999998 or higher from computation).

January 23, 2001 
Computing size of influence domain implemented.

January 17, 2001 
Minor bug in EPS/SVG export fixed.

January 13, 2001 
Linear and radial gradients
(continuously smooth color transitions from one color to another)
added to SVG exports (see Export/Options in Draw window).

January 12, 2001 
Additional exports to SVG according to line values added.

January 6, 2001 
A minor improvement in maximum flow algorithm added.

January 1, 2001 
Pajek 0.63: When labels of vertices are not specified (e. g. generating random networks)
labels of vertices are composed from letter v and its
vertex number (e. g. v23).

December 30, 2000 
A minor bug in KamadaKawai layout algorithm fixed.

December 29, 2000 
Inserting subpartition (which was previously extracted and then modified) back to the original partition implemented.

December 27, 2000 
Pajek 0.62: Additional transformations of a vector (logarithm, exponential and power) implemented.

December 25, 2000 
Transforming vector to partition by selecting first threshold and step implemented.

December 24, 2000 
Transforming two vectors containing polar coordinates (radius and angle in degrees)
to vectors containing cartesian coordinates (x and y) and vice versa implemented.

December 22, 2000 
Fitting two vectors using linear regression implemented.

December 19, 2000 
Moving vertices on the circle with radius defined by the distance
from the center implemented (Move/Fix/Radius).

December 13, 2000 
Saving currently loaded objects as a Pajek project file implemented.

December 11, 2000 
Reading Pajek project files (files containing all possible Pajek objects
 networks, partitions, permutations, clusters, hierarchies and vectors) implemented.
Example project file  test.paj

December 7, 2000 
Minor changes when editing network.

December 6, 2000 
Pajek 0.61: Changes when reporting results in text form to Report window  new lines are appended.

December 4, 2000 
Determining kneighbours of all vertices in cluster added.

December 3, 2000 
Computing maximum flow among vertices in cluster added.

December 1, 2000 
Options for generating circular layouts in Draw window added.

November 30, 2000 
Transforming bidirected arcs to edges generalized.

November 29, 2000 
Generating bipartite pgraphs implemented.

November 27, 2000 
Intersection of two partitions added.

November 26, 2000 
Adding sibling edges included (edges among vertices with common ancestor/descendant).

November 22, 2000 
Pajek 0.60: Standard deviation included to Info/Vector.

November 15, 2000 
In default shapes.cfg file x_fact changed from 3 to 1
(circles and squares instead of ellipses and rectangles
when exporting to EPS and SVG).

November 11, 2000 
Computing Cramer's V coefficient between two partitions implemented.

November 10, 2000 
Small change in transforming hierarchy to network:
nodes in hierarchy (classes) get sign + before their labels.

November 7, 2000 
When drawing using vector values:
size (instead of diameter) of the vertex represents vector value.

November 3, 2000 
Export to SVG using partitions generalized  possibility
of using two partitions selected by Partitions menu 
first for classes, second for colors.

November 2, 2000 
Additional option for exporting to SVG using partition:
lines among classes are drawn as semilines.

October 28, 2000 
Exports to EPS, SVG, VRML and mage extended to enable marking
vertices using vector values.

October 25, 2000 
Pajek 0.59: Instead of searching All Paths between two vertices
searching for Walks with Limited Length implemented.

October 21, 2000 
Possibility of marking vertices using vector values added
(see: Options/ MarkVerticesUsing/ VectorValues and Option/ Layout/ DecimalPlaces
in Draw window).

October 19, 2000 
Info/Partition modified and extended  relative frequencies and cumulatives added.

October 16, 2000 
New option in transforming 2mode to 1mode networks:
generating multiple lines with labels equal to vertices that served
to induce them.

October 15, 2000 
Computing Spearman rank correlation coefficient between two partitions implemented.

October 14, 2000 
Computing Pearson correlation coefficient between two vectors implemented.

October 13, 2000 
Vertices belonging to exactly one bicomponent as additional result of
computing biconnected components added.

October 12, 2000 
When generating any random network vertices are positioned
equidistantly on the circle now.

September 28, 2000 
Pajek 0.58: Network centralization indices (degree, closeness, betweenness) added.

September 12, 2000 
Betweenness centrality algorithm implemented.

September 8, 2000 
Closeness centrality algorithm implemented.

September 6, 2000 
Pajek 0.57: Exports to SVG format using partition implemented.

August 20, 2000 
Export to Scalable Vector Graphics (SVG) format implemented.
You need SVG viewer to watch it using Web browser.
A free copy of the plugin for Netscape/Explorer can be downloaded from
http://www.adobe.com/svg/viewer/install/
The picture in SVG can be further edited using
Jasc Trajectory Pro

August 11, 2000 
Extended model for generating random networks implemented.
See: R. Albert and A.L. Barabasi:
Topology of evolving networks: local events and universality.

August 5, 2000 
Options for showing/hiding vertices of size 0 and lines attached to such vertices
added.

August 2, 2000 
Generating random network with specified number of arcs implemented.

July 12, 2000 
Modifications of export to EPS procedure  size of vertices
set in draw window (Options/Size/of Vertices) is taking
into account when producing EPS picture.

July 11, 2000 
Manual moving of vertices in Draw window improved to take different shapes
of vertices into account.

July 5, 2000 
Pajek 0.56: Algorithm for finding important vertices in 2mode network implemented.

July 3, 2000 
Algorithm for finding hubs and authorities in directed network implemented
(contributed by Matjaž Zaveršnik).

June 27, 2000 
Options/Mark Vertices using/Real sizes in Draw window generalized.

June 1924, 2000 
Application of Pajek presented at 15th MATH/CHEM/COMP Conference on the
Interfaces among Mathematics, Chemistry and Computer Sciences,
Dubrovnik, Croatia 
May 25, 2000 
Loading and saving Pajek ini files added (Options/Ini File).
Using ini file(s) the same default parameters can be restored later.

May 10, 2000 
Pajek 0.55: Options/Previous/Next and Generate in Time
modified to take vectors into account.

May 5, 2000 
Exports to EPS, Mage and VRML modified to include sizes of vertices determined by
selected vector.

April 30, 2000 
DrawVector and DrawPartitionVector added:
sizes of vertices are determined by selected vector.

April 2729, 2000 
Pajek presented at 17th LeobenLjubljana Seminar on Discrete Mathematics,
Leoben, Austria 
April 23, 2000 
Options/Layout/Arrows in the Middle for drawing arrows in the middle of lines added.

April 22, 2000 
Deleting multiple lines generalized.

April 1922, 2000 
Pajek presented at DSI 2000, Portorož, Slovenia. 
April 1316, 2000 
Pajek presented at Sunbelt XX Conference
on Social Networks, Vancouver, Canada. 
April 11, 2000 
Events AP, DP and EP added to the list of time events.

April 10, 2000 
Event PE (Pair of arcs to Edge) added to the list of time events.

April 8, 2000 
Articulation points as additional result of computing biconnected components added.

April 1, 2000 
Saving time network in time events format implemented
(File/Time Events Network/Save).

March 15, 2000 
Pajek 0.54: Reading time network in time events format implemented
(File/Time Events Network/Read).

March 1, 2000 
Expanding given partial partition (some class numbers are 0)
as 'influence' to the rest of the vertices added. 
February 22, 2000 
Possibility to save several vectors (determined by cluster) on the same file added. 
February 20, 2000 
Counting vertices of selected color in the neighbourhood implemented. 
February 12, 2000 
Changes in searching labeled fragments  labels are classes (colors) in partition now. 
February 3, 2000 
Pajek 0.53: Number of loops and density of lines in network added to Info/Network/General. 
January 28, 2000 
Option Previous/Next generalized  possibility to show
several networks using the same partition,
several partitions on the same network
or change network and partition at the same time. 
January 27, 2000 
Exporting matrix to EPS using permutation modified to
enable dividing classes defined by partition using blue lines.

January 26, 2000 
Pajek 0.52: Pajek presented at Sredin Seminar, Ljubljana, Slovenia.

January 23, 2000 
Exporting layout to Windows bitmap format (bmp) implemented.

January 20, 2000 
Relocation algorithm for partitioning signed graphs generalized
to report all optimal solutions found.

January 15, 2000 
Startup logfile (Pajek.log) introduced. This logfile is
automatically executed every time when Pajek is run. 
January 12, 2000 
Exporting matrices to EPS extended to enable marking cells with negative values (red). 
January 6, 2000 
Relocation algorithm for partitioning signed graphs included.
For more information see: Doreian P., Mrvar A. (1996): A Partitioning Approach to Structural Balance.
Social Networks (18). 149168. 
December 28, 1999 
Pajek 0.51: CPM procedure modified  implementation without adding source and sink. 
December 21, 1999 
Changes in implementation of Citation weights procedure. 
December 9, 1999 
Number of lines having value 1 added in Info/Network/General. 
December 6, 1999 
Problems with nonvisibility of labels in EPS default window fixed. 
December 3, 1999 
Additional result (free delay times of activities) added in CPM procedure. 
November 30, 1999 
Possibility of marking lines with their values added. 
November 24, 1999 
Pajek 0.50: Additional vectors as result of reading GEDCOM files added. 
November 4, 1999 
Sorting lines around vertices implemented. 
October 13, 1999 
Pajek presented at conference: Information Society 1999, Ljubljana, Slovenia. 
October 810, 1999 
Pajek presented at Fourth Meeting of Austrian, Slovenian, Italian
and Hungarian Young Statisticians, Pecs, Hungary. 
October 6, 1999 
Pajek 0.49: Some minor bugs fixed. 
October 2, 1999 
Counter of layouts when drawing sequence of layouts added. 
September 30, 1999 
Additional measure of dissimilarities among selected vertices added. 
September 27, 1999 
Selection of border colors in EPS matrix added (only black, or black and white). 
September 25, 1999 
Exporting matrix to EPS using partition generalized:
besides structural also delta densities are added
(which are more suitable for sparse networks)

September 2022, 1999 
Pajek presented at International Conference on
Methodology and Statistics, Preddvor, Slovenia. 
September 15  19, 1999 
Application of Pajek presented at Graph Drawing 1999 Conference,
Prague, Czeck Republic. 
September 9, 1999 
Subdividing lines using middle mouse button in EditNetwork implemented.

September 8, 1999 
Pajek 0.48: Removing lines with value lower/higher than specified value
implemented.

September 3, 1999 
Transforming 2mode (affiliation) network to ordinary 1mode network
implemented.

August 30, 1999 
Reading and saving 2mode (affiliation) networks added.
The input/output file can be in Pajek or
Ucinet format (e.g. Davis.dat from Ucinet dataset).

August 27, 1999 
Pajek 0.47: No explicit tests have been done on version 0.47 of Pajek to see if it is
Year 2000 compliant, but to the best of our belief no problems will arise.
Pajek does not offer datemanipulation features to the user in any form.
Dates in output files are displayed in Delphi's LongDateFormat
(e. g. 08272001).

August 26, 1999 
Minor changes in triadic census algorithm to speed it up
and standard coding of triads added.

August 23, 1999 
Exporting matrix to EPS using partition implemented:
Density of lines among classes and vertices in selected two classes are
shown using shadowing.

August 14, 1999 
Reading Ucinet DL files changed. If the file contains several matrices,
all of them use the same description of vertices (like coordinates) 
useful when displaying sequence of networks.

August 12, 1999 
Generating network in specified time(s):
Option for generating new network only if at least one vertex or line
changed in the period.

August 10, 1999 
Possibility to include each vertex to its own neighbourhood when
computing dissimilarity matrices added. Dissimilarity d1
normalized using maxdegrees.

August 6, 1999 
Possibility to display and optimize sequence of networks
implemented.
Menu: Options/Previous/Next for changing parameters when drawing sequence
of (previous/next) networks added in Draw window.

August 5, 1999 
Exporting colors of vertices and lines defined on input (NET file)
to Mage and VRML added.

August 1, 1999 
Possibility to use colors of vertices and lines defined on input (NET file)
in draw window added (Options/Colors/Vertices, Edges or Arcs).
List of all possible colors (Acrobat file).
Example NET file with different colors
of vertices and arcs. 
July 31, 1999 
Number of different colors when using Draw/Partition increased to 32.
See: Class numbers and colors (Acrobat file).

July 28, 1999 
Export to Mage generalized  exporting consequent
networks (and partitions). 
July 26, 1999 
Minor changes in viewing partition, permutation, cluster and vector
(vertex labels from network attached). 
July 25, 1999 
Generating network in specified time(s) implemented
(Net/Transform/Generate in Time). 
July 23, 1999 
Displaying Next/Previous network in memory implemented (in Draw window). 
July 21, 1999 
Pajek 0.46: Editing cluster implemented. 
July 21, 1999 
Pajek presented at Sredin Seminar, Ljubljana, Slovenia. 
July 15, 1999 
Creating empty cluster implemented. 
July 11, 1999 
Exporting network as matrix in EPS using permutation implemented. 
July 8, 1999 
Editing permutation implemented. 
July 5, 1999 
Different measures of dissimilarities among selected
vertices determined using cluster according to common neighbours added. 
June 28  July 2, 1999 
Application of Pajek presented at 4th Slovenian International
Conference in Graph Theory, Bled, Slovenia 
June 27, 1999 
Median and standard deviation included to Info/Partition. 
June 2126, 1999 
Application of Pajek presented at 14th MATH/CHEM/COMP Conference on the
Interfaces among Mathematics, Chemistry and Computer Sciences,
Dubrovnik, Croatia 
June 2, 1999 
Pajek 0.45: Possibility of selecting noncontiguous ranges in partition
implemented (Cluster/Binarize Partition). 
May 25, 1999 
Pajek 0.44: Extended Info/Partition. 
May 14, 1999 
Faster algorithms for weak and strong components implemented. 
May 12, 1999 
Pajek 0.43: Upper number of vertices increased to 999997. 
May 11, 1999 
Pajek presented at Seminar for Discrete Mathematics,
Faculty of Mathematics and Physics, Ljubljana, Slovenia. 
May 4, 1999 
Pajek 0.42: Valued core partition implemented. 
April 28, 1999 
Generating identity vector of selected dimension added. 
April 2124, 1999 
Pajek presented at DSI'99, Portorož, Slovenia. 
March 10, 1999 
Pajek 0.41: Triadic Census (counting triads) implemented. 
March 5, 1999 
Autosaving position and size of Info window implemented.

February 1821, 1999 
Pajek presented at Sunbelt XIX Conference
on Social Networks, Charleston, USA. 
February 8, 1999 
Pajek 0.40: Modified exports to VRML, Kinemages and MDLMolfile
according to visibility / nonvisibility of edges and arcs. 
February 2, 1999 
Modified Centers procedure
(result of the procedure is vector now). 
January 12, 1999 
Some minor bugs fixed.

January 2, 1999 
Pajek 0.39: Harmonic function (defined on vector, network,
partition and permutation) implemented.

January 1, 1999 
Multiplication of matrix (network) by vector implemented.

December 23, 1998 
Several minor bugs fixed.

December 15, 1998 
Pajek 0.38: Export to Kinemages generalized  possibility
of using two partitions selected by Partitions menu 
first for generations, second for colors.

December 1, 1998 
Pajek 0.37: Move/Grasp added when drawing using partition 
determine which additional vertices are moving
when clicking with left mouse button close to vertex
in given class (only selected, selected and higher,
selected and lower).

November 18, 1998 
Some bugs in shrinking procedure fixed. 
October 21, 1998 
Pajek 0.36: Possibility to have more than one vector in input file added. 
October 18, 1998 
Editing vector implemented. 
October 15, 1998 
Some smaller bugs fixed. 
October 13, 1998 
Pajek 0.35: Retrieving coordinates of network to vector implemented.
Putting vector as coordinates of network implemented. 
October 911, 1998 
Pajek presented at Austrian, Hungarian, and Slovenian Joint Meeting
of Young Statisticians, Piran, Slovenia. 
October 8, 1998 
Truncating vector and transforming vector to partition
by truncating implemented. 
October 7, 1998 
Pajek 0.34: Binary operations on vectors (sum, difference, product, division, min, max)
implemented and additional operations according to neighbours added. 
October 6, 1998 
Reordering vector and specifying results
when dividing by 0 in Options/Read/Write added. 
October 5, 1998 
Making vector from partition and vector transformations
(multiplying by a constant, absolute, sqrt, normalizations) implemented. 
October 4, 1998 
Mirroring permutation and making partition into selected number of
clusters from given permutation implemented. 
October 3, 1998 
Another option of exporting to Kinemages added
 kinamages with labels. 
October 1, 1998 
Leader partition  partitioning vertices of acycling network
inside layers implemented. 
September 27, 1998 
Procedure making partition from vector generalized. 
September 25, 1998 
Making permutation from vector implemented. 
September 24, 1998 
Random partition into given number of clusters implemented. 
September 23, 1998 
Pajek presented at Sredin Seminar, Ljubljana, Slovenia. 
September 21, 1998 
Pajek 0.33: Modified CPM and Citation weights procedures
(results of the procedures are vectors now). 
September 19, 1998 
Relinking index of genealogy added to Info/Indices. 
September 17, 1998 
Export to Kinemages format improved to support animation. 
September 15, 1998 
Exporting network as matrix in EPS implemented
(File/Network/Export Matrix to EPS).
If valued network is exported shadowing is used.

September 14, 1998 
Averaging class numbers of neighbours and information about vector
implemented. 
September 13, 1998 
Extracting subvector according to partition and
making partition from vector implemented. 
September 12, 1998 
Vector (*.vec) as a new object in Pajek added.
Input format is similar to partitions, only that
values can be real numbers (not only positive integers).

September 1011, 1998 
Pajek presented at Graph Drawing Workshop, Passau, Germany. 
September 79, 1998 
Pajek presented at International Conference on
Methodology and Statistics, Preddvor, Slovenia. 
September 4, 1998 
Removing all lines inside the cluster implemented. 
September 2, 1998 
Pajek presented at Sredin Seminar, Ljubljana, Slovenia. 
August 31, 1998 
Pajek 0.32: Making partition from hierarchy and expanding partition
according to another partition implemented.

August 30, 1998 
Modification of making network from hierarchy
and extracting cluster from hierarchy done.

August 28, 1998 
SymmetricAcyclic decomposition of network implemented.

August 24, 1998 
Pajek 0.31: Computing aesthetic properties of a given layout implemented
(number of crossings, closest vertices,...)

August 20, 1998 
Modified shrink procedure, possibility of drawing/hiding
lines of network, and possibility of selecting maximum number
of vertices in network that will still be drawn implemented.

August 10, 1998 
Export to Kinemages format implemented.
You need Mage viewer to watch it.
A free copy of the Mage software can be downloaded from
Download Mage)

July 2731, 1998 
Pajek presented at Dagstuhl Seminar, Germany 
Graph Algorithms and Applications. 
July 22, 1998 
Reflection around y axis added. 
July 21, 1998 
Test if network is acyclic added to genealogy depth partition. 
June 2227, 1998 
Pajek presented at 13th MATH/CHEM/COMP Conference on the
Interfaces among Mathematics, Chemistry and Computer Sciences,
Dubrovnik, Croatia 
May 31, 1998 
Pajek presented at Sunbelt XVIII and 5th European Conference
on Social Networks, Sitges, Spain. 
May 27, 1998 
Workshop on Pajek at Sunbelt XVIII and 5th European Conference
on Social Networks, Sitges, Spain. 
May 24, 1998 
Pajek 0.30: Some bugs fixed and new macros added.

May 11, 1998 
Pajek 0.29: Possibility of marking lines added.

May 7, 1998 
Pajek presented at DSI'98, Portorož, Slovenia. 
April 29, 1998 
Hierarchy as additional result of searching fragments added.

April 15, 1998 
Pajek 0.28: Export to MDL MOLfile implemented.
This kind of files can be examined using Netscape plugin Chime
(Chemscape Chime).

April 13, 1998 
Reading MDL MOLfiles (*.mol) implemented
(often used in molecular graphics).

April 12, 1998 
Generating random network having fixed input or output
degrees of vertices implemented.

April 8, 1998 
Pajek 0.27: Export to VRML improved to fit better in CosmoPlayer. 
March 28, 1998 
Pajek 0.26: Drawing vertices using real sizes of
vertices implemented. 
March 27, 1998 
Storing additional settings (Colors and Sizes)
in Draw window implemented. 
March 25, 1998 
Pajek 0.25: Improved version of optimisation 2D layers implemented. 
March 17, 1998 
Pajek 0.24: Extracting selected class(es) to GEDCOM file implemented. 
March 4, 1998 
Pajek 0.23: Pajek presented at Sredin Seminar, Ljubljana, Slovenia. 
March 3, 1998 
Generalised and faster version of biconnected components implemented. 
February 26, 1998 
Improved version of genealogy depth partition implemented. 
February 19, 1998 
New option (forget values of lines) in CPM algorithm added. 
February 12, 1998 
Pajek presented at Enajsto posvetovanje sekcije za raziskovanje
informacijskih sistemov, Ljubljana, Slovenia.

January 27, 1998 
Box and Diamond as additional default shapes in DRAW/Export/Options included.

January 21, 1998 
Additional default EPS options in DRAW/Export/Options included
(Colors must begin with capital letter!).

January 18, 1998 
Converting all arcs in both directions to edges implemented.

January 17, 1998 
Modification of reading/saving windows done.

January 16, 1998 
Determining coordinates of vertices in original network
according to coordinates of vertices in shrunk network implemented.

January 12, 1998 
Possibility of displaying selected labels determined by
the partition using Options/Mark vertices using/Selected Class
implemented 
January 10, 1998 
Pajek signature on EPS files added, triangle and double edge
shapes implemented. 
January 7, 1998 
New algorithms for 2D an 3D drawing by layers added. 
January, 4, 1998 
Autosaving working directories added. 
December 27, 1997 
Generalisation of searching fragments implemented. 
December 16, 1997 
Pgraph (D. R. White) genealogy format and drawing dotted lines
(p Dots) implemented. 
December 14, 1997 
Info of hierarchy implemented. 
December 10, 1997 
UCINET (DL) input and output format added. 
December 5, 1997 
Minimization of total length of lines in drawing by layers
implemented (relocation algorithm). 
November 30, 1997 
Genealogy depth partition implemented. 
November 28, 1997 
Possibility of typing only the beginning of vertex labels
(some first characters) and then selecting from the list of hits
implemented (when searching kneighbours or paths, editing network).

November 26, 1997 
Pajek 0.15: Pajek presented at Sredin Seminar, Ljubljana, Slovenia 
November 25, 1997 
Drawing in layers in z direction implemented.

November 23, 1997 
Draw/Option/ScrollBar implemented (Moving across the picture
of network when one part of the picture is selected. Spinning
picture when whole picture is selected  like pressing keys X,Y,Z,S
or x,y,z,s [opposite direction]).

November 22, 1997 
Depth and breadth first numbering (permutation) implemented.

November 20, 1997 
Addition of partitions implemented.

November 17, 1997 
Pajek 0.14: Macro execution implemented.

November 12, 1997 
Operations on two partitions and reordering of partition implemented.

November 1, 1997 
Editing partition implemented.

October 31, 1997 
Exporting to EPS/PS using WYSIWYG option implemented
(What You See Is What You Get  exported EPS picture is similar to
picture in Draw window)

October 30, 1997 
Single right mouse click on selected vertex in Draw window
brings you to Edit window, where you can edit lines that belong to
selected vertex:
delete line [double left mouse click on selected line], add line
[double left mouse click on Newline] or change value of selected
line [single right mouse click].

October 27, 1997 
Additional results in shortest paths and maximum flow algorithms
implemented. 
October 25, 1997 
Removing all arcs/edges implemented. 
October 18, 1997 
Reading GEDCOM (genealogy) format and shapes partition implemented. 
October 18, 1997 
Pajek presented at Second Austrian Slovene Joint Statistics Meeting
of Young Statisticians, Pliberk (Bleiburg), Austria. 
October 16, 1997 
Autosaving position and size of Main and Draw window implemented.

September 1517, 1997 
Pajek presented at International Conference od Applied Statistics,
Preddvor, Slovenia. 
September 5, 1997 
Refinement of partition according to network (reachability)
and transforming partition to its canonical form implemented

August 30, 1997 
Values of lines considered as similarities/dissimilarities
when computing eigenvectors (or consider all values as 1)

August 22, 1997 
Possibility to input constraints for feasible positions when
moving vertices by hand in Draw window implemented. 
August 17, 1997 
Conversion of hierarchy into network implemented 
August 15, 1997 
Simple version of execution of Petri net implemented 
July 28, 1997 
Searching diameter (longest shortest path) of network included 
July 19, 1997 
Modification of FruchtermanReingold algorithm 
July 9, 1997 
Pajek presented at Sredin Seminar, Ljubljana, Slovenia 
July 8, 1997 
Additional statistics of partitions (Info/Partition) implemented 
July 5, 1997 
Obtaining layout(s) using eigenvalues/eigenvectors (Lanczos algorithm)
implemented (first implementation done by Bor Plestenjak)

June 2328, 1997 
Pajek presented at 12th MATH/CHEM/COMP Conference on the
Interfaces among Mathematics, Chemistry and Computer Sciences,
Dubrovnik, Croatia 
June 15, 1997 
Reduction of flow graphs, searching fragments (in moleculae or graphs)

June 7, 1997 
Ball and stick input and output format and MacMol output format added
(often used in molecular graphics)

June 1, 1997 
Storing in matrix form, generalized binary operations
and multiple zoom implemented

May 14, 1997 
Fisheye transformation and binary operations on networks implemented

May 7, 1997 
Procedure identify added  reorder and/or fuse vertices from partition

April 30, 1997 
FruchtermanReingold algorithm for automatic layout generation
in space implemented

April 2425, 1997 
Pajek presented at 15th LeobenLjubljana Seminar on Combinatorics,
Leoben, Austria 
April 23, 1997 
Spin in space, export to VRML 
April 20, 1997 
Modification of EPS format (importing pictures to Word for Windows) 
April 16, 1997 
Pajek 0.3: Centers, Spin in plane 
April 10, 1997 
Pajek presented at DSI'97, Portorož, Slovenia 
April 2, 1997 
Pajek 0.2: Export to EPS/PS implemented 
March 19, 1997 
Line values used in Energy drawing algorithm 
February 1316, 1997 
Pajek presented at XVII Sunbelt Conference in San Diego, USA. 
January 29, 1997 
Pajek presented at Sredin Seminar, Ljubljana, Slovenia 
January 15, 1997 
Pajek 0.1: Visual presentation and Energy drawing (KamadaKawai) added 
December 22, 1996 
First version of program  implementation of basic algorithms 
November 15, 1996 
First ideas about large network analysis program 