On Apr 10, 2013, at 03:24 , nntx wrote: > As a simple example, I want to find minimum value for x^2, but it can't be > obtained by: > f<-function(x)x^2 > optimize(f,lower=-1,upper=1)
Works fine for me. What did you expect it to do? > f<-function(x)x^2 > optimize(f,lower=-1,upper=1) $minimum [1] -2.775558e-17 $objective [1] 7.70372e-34 -pd > > What are other methods to deal with this? I tried DEoptim, still doesn't > work. Any suggustions will be extremely helpful! THanks! > > > Shelly > > > > -- > View this message in context: > http://r.789695.n4.nabble.com/Optimization-problem-tp4663821.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. -- Peter Dalgaard, Professor Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Email: pd....@cbs.dk Priv: pda...@gmail.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.
