a free program written by Steve Borgatti for analyzing ego-network
data (as opposed to "full-network" or "socio-centric" data). The program
accepts data pertaining to the egos (e.g., age, sex) and to the alters
(both relations between ego and alter and attributes of alter). In
addition, it accepts ties among the alters.
The program calculates a number of indices in service of
examining the composition of the ego network (e.g. how many alters are
women), the heterogeneity of the ego network (e.g., how diverse is each
person's network), homophily (tendency of egos to seek out similar
alters), and structural hole measures. All numerical analyses are
automatically performed on all egos.
The program also has visualization capabilities and the
ability to create crosstabs of ego variables against alter variables.
A key feature of the program is its powerful filtering capabilities
allowing you to select which egos, which alters and which relations should
be active in any given analysis.
The program is currently in the beta stage of
development, so it is still pretty rough.