Re: [R] MLE Constraints

Dears, Any help? Thanks, LFRC LFRC wrote: > > Dears, > > I'm trying to find the parameters (a,b, ... l) that optimize the function > (Model) > described below. > > 1) How can I set some constraints with MLE2 function? I want to set p1>0, > p2>0

[R] MLE Constraints

Dears, I'm trying to find the parameters (a,b, ... l) that optimize the function (Model) described below. 1) How can I set some constraints with MLE2 function? I want to set p1>0, p2>0, p3>0, p1>p3. 2) The code is giving the following warning. Warning: optimization did not converge (code 1)

Re: [R] Help MLE

,f=model2, grad=NULL, ui = c(1,-1,0.5), ci = rep(0,3)) ERROR: Error in optim(start, f, method = method, hessian = TRUE, ...) : objective function in optim evaluates to length 30 not 1 Best regards, LFRC Ben Bolker wrote: > > LFRC yahoo.com.br> writes: &g

Re: [R] Help MLE

;Model",as.list(p)) > } Best regards, LFRC Ben Bolker wrote: > > 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 obta

[R] Help MLE

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