Re: [R] Constraint on one of parameters.

2012-02-11 Thread Petr Savicky
On Fri, Feb 10, 2012 at 11:40:57PM -0600, FU-WEN LIANG wrote: > Thanks for your suggestion. > I did read the manual but it seems those examples set boundaries for every > parameter. I have no idea how to set bound for only one parameter(in my > case, only for theta[21]). I tried adding > "method='L

Re: [R] Constraint on one of parameters.

2012-02-11 Thread FU-WEN LIANG
Thanks for your suggestion. I did read the manual but it seems those examples set boundaries for every parameter. I have no idea how to set bound for only one parameter(in my case, only for theta[21]). I tried adding "method='L-BFGS-B',lower=c(rep(inf,20),-1),upper=c(rep(inf,20),1)", but got this e

Re: [R] Constraint on one of parameters.

2012-02-09 Thread Rubén Roa
Read optimx's help. There are 'method', 'upper', 'lower' arguments that'll let you put bounds on pars. HTH Rubén -Mensaje original- De: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] En nombre de FU-WEN LIANG Enviado el: jueves, 09 de febrero de 2012 23:56 Para: r-hel