what is the definition of alter can ego and alter be used in network analysis how to calculate covariates in network analysis what is the relationship between alters and egos what is the principle of the GEE model why is ego an x y what is the gee approach what is the main covariate of the network what is geek method what type analysis is used to identify a network of individuals what is the relationship between alter and ego why is a gee a useful model what is the definition of ego which model shows how many independent observations for each independent observation? what is y(ego) and alter? can the generalized estimating equation be applied to networks? why is it important to use an ego and alter approach what is the difference between an alter and a ego what is the relationship between alters and egos? what is the generalized estimating equation for social networks?