Dear everyone, I'm encountering an unknown error message when using gamm function:
> fitoutput <- gamm(cvd~as.factor(dow)+pm10+s(time,bs="cr",k=15,fx=TRUE)+s(tmean,bs="cr",k=7,fx=TRUE) + ,correlation=corAR1(form=~1|city),family=poisson,random=list(city=~pm10),data=mimp) Maximum number of PQL iterations: 20 iteration 1 iteration 2 iteration 3 iteration 4 iteration 5 iteration 6 Error in `*tmp*`[[k]] : attempt to select less than one element I never saw this error message before, and there is also no related information about this error from the Internet. Hope some people who once encountered this problem can tell me what's wrong. Many thanks, LC -- Lung-Chang Chien Doctoral candidate, Department of Biostatistics Statistical assistant, School of Nursing University of North Carolina at Chapel Hill Office: Carrington Hall, RSC, Room 2014 TEL: 919-843-2480 [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org 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.