Non-Linear Minimization

by baxy77bax (Deacon)

on Jan 11, 2017 at 15:17 UTC ( [id://1179400]=perlquestion: print w/replies, xml )

Need Help??

baxy77bax has asked for the wisdom of the Perl Monks concerning the following question:

Hi,

I have a question. I R there is function called nlm (Non-Linear Minimization function) and it takes a function and a start parameter. Example:

A <- function(f){
        lh(a=f,...(ther parameters))
}
B <- function(t){
        -log(t(f=t))
}
start = (some value)

nlm(B,p=c(start))
[download]

Is there something simmilar in perl and could someone be so kind to give an example?
Thnx

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Re: Non-Linear Minimization by LanX (Saint) on Jan 11, 2017 at 15:34 UTC
PDL::Opt::NonLinear Looks a lot like http://stat.ethz.ch/R-manual/R-devel/library/stats/html/nlm.html Cheers Rolf _{(addicted to the Perl Programming Language and ☆☆☆☆ :) Je suis Charlie!} PS as a side note `hessian = FALSE` ! YEAH ! ;) update Corrected module link from metacpan to cpan, thanks to toolic and kennethk for pointing out the link was broken. (Not sure if this is more than vapourware)	[reply] [d/l]
Re^2: Non-Linear Minimization by etj (Deacon) on May 18, 2022 at 23:34 UTC
Note from THE FUTURE: PDL::Opt::NonLinear (on MetaCPAN) works fine now.	[reply]
Re: Non-Linear Minimization by toolic (Bishop) on Jan 11, 2017 at 15:30 UTC
Try Statistics::R Search CPAN: http://search.cpan.org/search?query=nonlinear&mode=all etc.	[reply]