>
> I'm wondering about experiences:
> Do you know of cases where minpack.lm's nls.lm() solved a
> (real) problem that nls() would have a problem with ?
>
In short, no. However, I looked at this question in the limited context
of fitting the parameters of a linear superposition of 2 exponential
> "KateM" == Katharine Mullen <[EMAIL PROTECTED]>
> on Fri, 7 Sep 2007 20:07:41 +0200 (CEST) writes:
KateM> The thread you linked to regarding Levenberg-Marquardt's supposed
lack of
KateM> availability is from 2001; it has been possible to get
KateM> to the MINPACK impleme
The thread you linked to regarding Levenberg-Marquardt's supposed lack of
availability is from 2001; it has been possible to get
to the MINPACK implementation of Levenberg-Marquardt within R via the
package minpack.lm
(http://cran.r-project.org/src/contrib/Descriptions/minpack.lm.html) since
2005.
On Fri, Sep 07, 2007 at 08:34:45PM +0200, Jose Luis Aznarte M. wrote:
> Hi! I'm translating some code from Matlab to R and I found a problem.
> I need to translate Matlab's function 'lsqnonlin'
> (http://www-ccs.ucsd.edu/matlab/toolbox/optim/lsqnonlin.html) into R,
Do you want the "nls"
Hi! I'm translating some code from Matlab to R and I found a problem.
I need to translate Matlab's function 'lsqnonlin'
(http://www-ccs.ucsd.edu/matlab/toolbox/optim/lsqnonlin.html) into R,
and at the beginning I thought it would be the same as R's 'optim'. But
then I looked at the defi
