Dear All, I wrote a program and there is a loop. At each iteration I use maximum likelihood factor analysis (?factanal). Output of factor analysis I use later (in this loop). Unfortunately from time to time I get an error message (I paste it below) and everything is stopped. Is it possible to write a condition that if error appears in factor analysis (FA), change input data for FA and do it again? Example
for (i in 1:1000){ FA<-factanal(data,factor=3) If error appears change data to data2 and do factor analysis again #rest of the program ............ ............ } Best, Robert Error in optim(start, FAfn, FAgr, method = "L-BFGS-B", lower = lower, : L-BFGS-B needs finite values of 'fn' In addition: Warning message: NaNs produced in: log(x) [[alternative HTML version deleted]] ______________________________________________ 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.