Re: [R] Help MLE

2008-10-10 Thread LFRC
Thanks again. Now I want to complicate the model. Supose that Y is a vector with 30 data. Y = c(0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0) Then the r = sum(Y*log(comb)) Is it possible? I want to discover the variables values (alpha12,w_g12,w_u12) f

Re: [R] Help MLE

2008-10-10 Thread Ben Bolker
LFRC yahoo.com.br> writes: > > > Dear Ben Bolker, > > Thanks a lot for your help. > > I have two more questions: > > 1) My goal is maximize the function (> r = Y*log(comb)) but the > parameters found, minimized the function (r = Y*log(comb)). > Oh. Oops. Just change the sign ( r =

Re: [R] Help MLE

2008-10-10 Thread LFRC
Dear Ben Bolker, Thanks a lot for your help. I have two more questions: 1) My goal is maximize the function (> r = Y*log(comb)) but the parameters found, minimized the function (r = Y*log(comb)). 2) What this function do? > model2 <- function(p) { > do.call("Model",as.list(p)) > }

Re: [R] Help MLE

2008-10-09 Thread Ben Bolker
LFRC yahoo.com.br> writes: > > > Dear, > > I'm starting on R language. I would like some help to implement a MLE > function. > > I wish to obtain the variables values (alpha12, w_g12, w_u12) that maximize > the function LL = Y*ln(alpha12 + g*w_g12 + u*w_u12). > You're running into a pro

[R] Help MLE

2008-10-09 Thread LFRC
Dear, I'm starting on R language. I would like some help to implement a MLE function. I wish to obtain the variables values (alpha12, w_g12, w_u12) that maximize the function LL = Y*ln(alpha12 + g*w_g12 + u*w_u12). Following the code: rm(list=ls()) ls() library(stats4) Model = functio