[R] What does this warning message (from optim function) mean?

Hi R users, I am trying to use the optim function to maximize a likelihood funciton, and I got the following warning messages. Could anyone explain to me what messege 31 means exactly? Is it a cause for concern? Since the value of convergence turns out to be zero, it means that the converging is

Re: [R] What does this warning message (from optim function) mean?

You mean 'TRUE': 'T' is a variable in R, with initial value TRUE. On Wed, 25 Aug 2010, Sally Luo wrote: Hi R users, I am trying to use the optim function to maximize a likelihood funciton, and I got the following warning messages. Could anyone explain to me what messege 31 means exactly? Is

Re: [R] What does this warning message (from optim function) mean?

-project.org] On Behalf Of Sally Luo Sent: Wednesday, August 25, 2010 11:26 AM To: r-help@r-project.org Subject: [R] What does this warning message (from optim function) mean? Hi R users, I am trying to use the optim function to maximize a likelihood funciton, and I got the following warning messages. Could

Re: [R] What does this warning message (from optim function) mean?

the deteminant is a nonpositive value. log(det(...)) produce NaNs... -- View this message in context: http://r.789695.n4.nabble.com/What-does-this-warning-message-from-optim-function-mean-tp2338689p2338719.html Sent from the R help mailing list archive at Nabble.com.