Dear Xiaohui, Thanks a lot for your help! It worked for me.
Best regards! JP- --On Monday, June 11, 2007 9:25 AM -0700 Xiaohui <[EMAIL PROTECTED]> wrote: > see ?try > > Jianping Jin wrote: >> Dear group: >> >> I wrote a code to iterate a non-linear fit with a set of data. The >> entire process didn't implemented to the end because an error message, >> "singular gradient". I knew that some sub-sets (columns) do not fit my >> formula well and may result in parameters going to infinity. It is >> pretty hard to remove those sub sets before running the code since that >> will take a lot of time. >> >> I added some logic assessments prior to running nonlinear fit. It helped >> but some exceptions still existed. I am wondering if there is any way in >> R by which I can continue to run the entire code to the end by ignoring >> the error message? >> >> Greatly appreciate your help, >> >> Jianping >> >> ################################## >> Jianping Jin Ph.D. >> Bioinformatics scientist >> Center for Bioinformatics >> Room 3133 Bioinformatics building >> CB# 7104 >> University of Chapel Hill >> Chapel Hill, NC 27599 >> Phone: (919)843-6105 >> FAX: (919)843-3103 >> E-Mail: [EMAIL PROTECTED] >> >> ______________________________________________ >> 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. >> >> > ################################## Jianping Jin Ph.D. Bioinformatics scientist Center for Bioinformatics Room 3133 Bioinformatics building CB# 7104, Campus Phone: (919)843-6105 FAX: (919)843-3103 E-Mail: [EMAIL PROTECTED] ______________________________________________ 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.