You are unlikely to get help on this without a reproducible example. One obvious possibility is that those values are already optimal. Another is that you are not invoking the optimization properly. -- Sent from my phone. Please excuse my brevity.
On March 24, 2016 5:13:35 AM PDT, Anusha Kothapalli <akoth...@umass.edu> wrote: >---------- Forwarded message ---------- >From: *Anusha Kothapalli* <akoth...@umass.edu> >Date: Wednesday, March 23, 2016 >Subject: question on constrOptim >To: r-c...@r-project.org > > >To Whom It May Concern, > >We are using constrOptim to maximize a log likelihood function. The >constrOptim call returns values, however, they are *exactly identical* >to >the initial values we input. Our ci, ui, gradient, etc. match the >requirements for use of this function. So we are out of ideas. Would >you >happen to know how to make constrOptim run multiple iterations and/or >return values that aren't equal to our initial values? >Any input you have would be greatly appreciated! > >Thanks :) > > [[alternative HTML version deleted]] > >______________________________________________ >R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >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. [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
