I'm looking for an example of a simple R script that impliments a
contrained nonlinear function using nlm or optim. I'm not exactly sure how
to impliment the constraints within the objective function that is passed
to nlm/optim.
obj.func <- function( p ) {
x(p) <- unconstrained obj function value
if( constraint1 > something ) {
obj.func <- x(p)
} else {
obj.func <- some super huge number
}
}
p <- c(0.1,2.4, 5)
nlm( obj.func, p, and a bunch of other arguments )
Any suggestions would be very helpful...
Jeff.
--
Jeff D. Hamann
Forest Informatics, Inc.
PO Box 1421
Corvallis, Oregon 97339-1421
phone 541-754-1428
fax 541-752-0288
[EMAIL PROTECTED]
http://www.forestinformatics.com
______________________________________________
[EMAIL PROTECTED] mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
