[R] Source code for nlm()

Ravi Varadhan RVaradhan at jhmi.edu
Thu Feb 19 19:53:44 CET 2009

Thank you, Chris and Duncan.  It never occurred to me to look in optimize.c
since optimize() does univariate minimization.  Furthermore, now I know that
the underlying Fortran code (OPTIF9) is from the UNCMIN library (may be this
should be mentioned in the help page, although once can get to this
information from the second reference).  



Ravi Varadhan, Ph.D.

Assistant Professor, The Center on Aging and Health

Division of Geriatric Medicine and Gerontology 

Johns Hopkins University

Ph: (410) 502-2619

Fax: (410) 614-9625

Email: rvaradhan at jhmi.edu

Webpage:  http://www.jhsph.edu/agingandhealth/People/Faculty/Varadhan.html



-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On
Behalf Of Duncan Murdoch
Sent: Thursday, February 19, 2009 1:17 PM
To: Ravi Varadhan
Cc: r-help at r-project.org
Subject: Re: [R] Source code for nlm()

On 19/02/2009 1:00 PM, Ravi Varadhan wrote:
> Hi,
> Where can I find the source code for nlm()?  I dowloaded the 
> R2.8.1.tar.gz file and looked at all the .c and .f files, but couldn't 
> find either nlm.c or nlm.f
> There is an nlm.r file, but that is not useful.

I don't see why you say it's not useful, because it's the starting point to
find the code.


  Ligges, U. (2006): R Help Desk: Accessing the Sources. R News 6 (4),
43-45. http://cran.r-project.org/doc/Rnews/

for the next steps.  (To save you some time:  look in src/main/optimize.c.
But Uwe's article would have got you there pretty quickly).

Duncan Murdoch

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