from the book
Exploratory Social Network Analysis with Pajek
Wouter de Nooy, Andrej Mrvar, Vladimir Batagelj
Visiting ties among families in Turrialba, Costa Rica, 1948.
Attiro.net: 60 vertices (families), 161 arcs (visiting relations), line values (1
- ordinary visits, 2 - visits among kin, 3 - visits among ritual kin), no
edges, no loops.
Attiro_grouping.clu: ethnographic classification into six family-friendship
groupings (class numbers 1 to 6).
Attiro.paj: Pajek project file containing the network and partition for Attiro.
SanJuanSur.net: 75 vertices (families), 199 arcs (visiting relations), line
values (1 -ordinary visits, 2 - visits among kin, 3 - visits among ritual
kin), no edges, no loops.
SanJuanSur_grouping.clu: ethnographic classification of the families in
SanJuanSur.net into nine family-friendship groupings (class numbers 1
SanJuanSur_deathmessage.net: 75 vertices, 198 arcs (visits for announcing
a death), no edges, no loops.
SanJuanSur_deathmessage.clu: ethnographic classification of the families
SanJuanSur_deathmessage.net into nine family-friendship groupings
(class numbers 1 to 9).
SanJuanSur.paj: Pajek project file containing the network and partition for
San Juan Sur.
Attiro complete dataset (ZIP, 1.7K);
San Juan Sur complete dataset (ZIP, 3.5K)
In 1948, American sociologists executed a large field study in the Turrialba
region, which is a rural area in Costa Rica (Latin America). They were
interested in the impact of formal and informal social systems on social
change. Among other things, they investigated visiting relations between
families living in haciendas (farms) in a neighborhood called Attiro. The
network of visiting ties is a simple directed graph: each arc represents
"frequent visits" from one family to another. The exact number of visits
was not recorded. Line values classify the visiting relation as ordinary
(value one), visits among kin (value two), and visits among ritual kin, i.e.,
between god-parent and god-child.
The investigators proposed an ethnographic classification of the families
into six family-friendship groupings on substantive criteria. In rural areas
where there is little opportunity to move up and down the social ladder
social groups are usually based on family relations.
Similar data are available for another village in the same area: San Juan
Sur. In addition, for San Juan Sur, a network is available with the arcs
representing the answers of the (head of) families to the question: "In case
of a death in the family, whom would you notify first?". In this file
(SanJuanSur_deathmessage.net), the coordinates of families correspond
with the locations of families in the original sociogram drawn by the
- Charles P. Loomis, Julio O. Morales,
Roy A. Clifford & Olen E. Leonard, Turrialba.
Social Systems and the Introduction of Change (Glencoe
(Ill.): The Free Press, 1953): p. 43 (Attiro), 45 and 78 (San Juan Sur).
- W. de Nooy, A. Mrvar, & V. Batagelj, Exploratory Social Network
Analysis with Pajek (Cambridge: Cambridge University Press, 2004),
- Original author:
Charles Price Loomis (1905-1995).
- Data collected and translated into Pajek data files by W. de Nooy, 2001
(San Juan) and 2003 (Attiro).
1. January 2004
Pajek datasets /