On Wed, 17 Dec 2003, Savano S. Pereira wrote: > UseRs, > > I used the optim function > > valor.optim <- optim(c(1,1,1),logexp1,method > ="BFGS",control=list(fnscale=-1),hessian=T); > > and I want to calculate the derivates, [ ... snip ... ] > > but I found, [ ... snip ... ] > > The derivates are zero. Why?
Do you suppose it could have something to do with the condition for finding an optimum ? - tom blackwell - u michigan medical school - ann arbor - ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
