[m p]
>Can someone point to a package with Newton-Raphson method using
>analytic derivatives. This is just for a 1D problem. Could not find
>easily anything suitable.
You may check:
http://pinard.progiciels-bpi.ca/plaisirs/animations/NRart/R/nr.image.R
If you remove the graphics-related lin
Hello,
Can someone point to a package with Newton-Raphson
method using analytic derivatives. This is just for
a 1D problem. Could not find easily anything suitable.
Thakns,
Mark
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To maximize a function numerically it not usual do not solve equations: it
is less efficient.
help.search("optimize")
will show you what is available for maximization.
Or see chapter 16 of MASS4.
On Wed, 8 Feb 2006, Frank Johannes wrote:
> Hi,
> I want to maximize a liklihood function with mu
Hi,
I want to maximize a liklihood function with multiple parameters. There
is no closed-form analytical solution to the estimates of the
parameters, and I would like to implement a Newton-Raphson iterrative
approach. Is there a maximization procedure, such as the Newton-Raphson
algorithm, availabl
> "dlavecchia" == dlavecchia <[EMAIL PROTECTED]>
> on Wed, 30 Nov 2005 17:08:47 +0100 writes:
dlavecchia> I have to solve a score function by using
dlavecchia> Newton-Raphson algorithm. Is there such a
dlavecchia> fucntion in R? I have built this algoritm
dlavecchia>
Hi everybody,
I have to solve a score function by using Newton-Raphson algorithm. Is there
such a fucntion in R? I have built this algoritm
newton<-function(tgt,drva,th0,err) {
iter=0
repeat {iter = iter+1
th1=th0-tgt(th0)/drva(th0)
if (abs(th0-th1)http://abbonati.tiscali.it/adsl/sa/1e25flat_tc/
I just got 37 hits from 'RSiteSearch("solve nonlinear equation")',
many of which seem relevant to your question. If none of these seem to
answer your question, submit another question. (Before you submit
another question, however, I suggest you read the posting guide!
"www.R-project.org
Dear all,
I want to solve a score function by using Newton-Raphson algorithm. Is there
such a fucntion in R? I know there's one called optim, but it seems only doing
minimizing or maximizing.
Thanks,
Jimmy
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