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Dear all, I have a problem with gamma regression (glm - family = Gamma) and zeros in R. The problem is the following when I try to estimate a dataset without zeros (endogenous variable) there is no problem. However, if I try to do the same with zeros I always get an error message. In STATA and MATLAB I can do a gamma regression with zeros. What could be the problem? If someone could help me I

Dear R Users, I am trying to obtain a best-fit analytic distribution for a dataset with 11535459 entries. The data range in value from 1 to 300000000. I use: fitdistr(data, "gamma") to obtain mle's for the parameters. I get the following error: Error in optim(start, mylogfn, x = x, hessian = TRUE, ...) : non-finite finite-difference value [1] And the following warnings: