Hello! I am trying to run my S+ code in R (version 2.1.0). I've created a customized link function, namely my.binomial where parameter theta has to be given. I'm considering theta to be .05. Unfortunately, R is giving an error (I had used MASS in adjusting the S+ code to R). I would very much appreciate it if you could help me in finding the correction needed in the code. My S+ code I'm trying to adjust to R is: g<-glm(y~diffwhale+tdelta:diffwhale+tdelta2:diffwhale, data=ind, family=my.binomial(theta=.05)) Thanks, Isin