rehena wrote > > Hi Ozgur, > > Many thanks for your help. > > May be I am not very strong enough in the OPTIMIZATION field. Can I check > with you whether second derivative of the function at global max will be > less than 0 and will be greater than 0 at local max? > > Thanks in advance. > > Regards, > rehena >
Dear rehena, If you want to check whether the second derivative is negative by OOmisc, the answer is no. You an derive the derivatives by hand and code in R. Ozgur -- View this message in context: http://r.789695.n4.nabble.com/Need-help-in-using-OPTIM-OPTIMIZATION-function-tp4633796p4633924.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
