Try using OLS starting values: glm(Y~X,family=gaussian(link=log), start = coef(lm(Y~X)))
On 10/14/06, Michael Dewey <[EMAIL PROTECTED]> wrote: > At 15:31 13/10/2006, Ronaldo ReisJunior wrote: > >Hi, > > > >I have some similar problems. Some times ago this problem dont there existed. > > > >Look this simple example: > > > > > Y <- c(0,0,0,1,4,8,16) > > > X <- c(1,2,3,4,5,6,7) > > > > > m <- glm(Y~X,family=gaussian(link=log)) > >Error in eval(expr, envir, enclos) : cannot find valid starting > >values: please > >specify some > > Have you tried specifying some starting values as it asks? > Try start=c(-3,1) for instance > > > > Michael Dewey > http://www.aghmed.fsnet.co.uk > > ______________________________________________ > 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 > and provide commented, minimal, self-contained, reproducible code. > ______________________________________________ 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 and provide commented, minimal, self-contained, reproducible code.