On Wed, 2 Nov 2005 14:32:52 +0200, Mark Miller wrote: MM> I am using the MASS library function MM> MM> fitdistr(x, dpois, list(lambda=2)) MM> MM> but I get MM> MM> Error in optim(start, mylogfn, x = x, hessian = TRUE, ...) : MM> Function cannot be evaluated at initial parameters MM> In addition: There were 50 or more warnings (use warnings() to see MM> the first 50) MM> MM> and all the first 50 warnings say MM> MM> 1: non-integer x = 1.452222 MM> etc MM>
are the data integers (as implicit in the assumption of Poisson dist'n)? the above message seems to say that they are not Adelchi Azzalini -- Adelchi Azzalini <[EMAIL PROTECTED]> Dipart.Scienze Statistiche, Università di Padova, Italia tel. +39 049 8274147, http://azzalini.stat.unipd.it/ ______________________________________________ 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
