ustment to the Jacobian to avoid singularity.
JN
On 14-12-17 06:00 AM, r-help-requ...@r-project.org wrote:
Message: 9 Date: Tue, 16 Dec 2014 08:24:45 -0800 From: Bert Gunter
To: Chandrasekhar Rudrappa
Cc: "r-help@r-project.org"
Subject: Re: [R] Help specifying a non-linear model i
Suitable help may not be possible. I suspect that either your
function/code is funky (is the function smooth, non-infinite near your
starting value?) or you are overparameterized. If the latter, the
remedy may depend on the nature of your data, which you have not
shared.
While you may receive some
Dear All,
I am trying to fit the following model in nlsLM():
fn5 <- function(x, T, t1, w_inf, Lt0){
S<-function(x, T, t1){
x+(1-T)/(2*pi)*sin(2*pi*(x-t1)/(1-T))
}
F <- function(x, T, t1){
t2 <- t1 + (1-T)/2
t3 <- t1 + (1+T)/2
t.factorial <- x%%1
floor(x)*(1-T) + S(t.factorial, T, t1)*(0<=t.factor
3 matches
Mail list logo
