Gabor Grothendieck ggrothendi...@gmail.com wrote in message
news:aanlktilszaicycu3lz2f5d_bxq1g8m8f7jsjsbj2l...@mail.gmail.com...
On Tue, Jul 20, 2010 at 9:58 AM, nas...@uottawa.ca wrote:
For nls, the fixing (or masking) of parameters is not, to my knowledge,
possible.
This is something
Gabor Grothendieck ggrothendi...@gmail.com wrote in message
news:aanlktilszaicycu3lz2f5d_bxq1g8m8f7jsjsbj2l...@mail.gmail.com...
On Tue, Jul 20, 2010 at 9:58 AM, nas...@uottawa.ca wrote:
For nls, the fixing (or masking) of parameters is not, to my knowledge,
possible.
This is something
For nls, the fixing (or masking) of parameters is not, to my knowledge,
possible.
This is something I've been trying to get in such routines for over 2
decades. Masks are
available, but not yet well documented, in Rcgmin and Rvmmin packages.
However, these use
an optim() style approach, which is
nas...@uottawa.ca wrote in message
news:33466.129.6.253.2.1279634282.squir...@webmail02.uottawa.ca...
For nls, the fixing (or masking) of parameters is not, to my knowledge,
possible.
This is something I've been trying to get in such routines for over 2
decades. Masks are
available, but not
On Tue, Jul 20, 2010 at 9:58 AM, nas...@uottawa.ca wrote:
For nls, the fixing (or masking) of parameters is not, to my knowledge,
possible.
This is something I've been trying to get in such routines for over 2
decades. Masks are
available, but not yet well documented, in Rcgmin and Rvmmin
I'm using nls to fit a variety of different models. Here I use SSgompertz as
an example.
I want the ability to fix one (or more) of the coefficients that would
normally be optimised (e.g. fix b3=0.8).
Examples; based on and using data from example(SSgompertz)
#-
# vanilla
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