Hii all, may I introduce myself. my name is Putro Nugroho i'am astudent of Gadjah Mada University, i'am doing on my final exam about Parametric Regression Model with gamma and log-gamma regression model. I have a problem about the syntax program on R because it doesn't work with gamma distribution with log link function. when I use zelig package it doesn't work when the data is cencored or the log times yi is negative value.Can I get help on the syntax program with the application on lung data or is there any specified package on R that discuss about survreg with gamma distribution and the function link is log. Since I use GLM it doesn,t work with cencored observation either.Sorry if my  English isn't good enough and for the forward message i say thanks very much.
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