Dataset	Descriptions	Backgroud
zachary	Two 34x34 matrices.
ZACHE symmetric, binary.
ZACHC symmetric, valued.	These are data collected from the members of a university karate club by Wayne Zachary.
The ZACHE matrix represents the presence or absence of ties among the members of the club.
The ZACHC matrix indicates the relative strength of the associations (number of situations in and outside the club in which interactions occurred).