[R] optim() and La.svd() error code 1

Robin Hankin rksh at soc.soton.ac.uk
Mon Mar 15 10:53:49 CET 2004


Hello everybody.

I am using optim() to minimize a function of 19 variables and I 
repeatably get the following error
message:


R> source("/users/sat/rksh/goldstein/emulator/optimizer.R")
sann objective function values
initial       value 5044.955275
Error in La.svd(x, nu, nv, method) : error code 1 from Lapack routine dgesdd
R>

This error occurs whether I use SANN or Nelder-Mead.  My objective 
function doesn't seem
to do anything odd near my starting value.

Does anyone have any experience of this error message?

-- 
Robin Hankin
Uncertainty Analyst
Southampton Oceanography Centre
SO14 3ZH
tel +44(0)23-8059-7743
initialDOTsurname at soc.soton.ac.uk (edit in obvious way; spam precaution)




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