At 10:32 2/11/2005, you wrote: >I am using the MASS library function > >fitdistr(x, dpois, list(lambda=2)) > >but I get > >Error in optim(start, mylogfn, x = x, hessian = TRUE, ...) : > Function cannot be evaluated at initial parameters >In addition: There were 50 or more warnings (use warnings() to see the first >50) > >and all the first 50 warnings say > >1: non-integer x = 1.452222 >etc > >Can anyone tell me what I am doing wrong. p.s. the data was read in from >a .csv file that I wrote using octave
Mark, Try fitdistr(x, "Poisson") I think this is enough for fit Poisson distribuition for your data Bernardo Rangel Tura, MD, MSc National Institute of Cardiology Laranjeiras Rio de Janeiro Brazil -- ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
