Re: [R-sig-phylo] Error message when running gls with estimated lambda

2015-11-04 Thread Emmanuel Paradis
Hi Antonella, It could be that the optimization procedure of the log-likelihood fails with your data, or that this procedure tries some values of lambda that return an error in your situation. You may try to fit successive models with different values of lambda, and select the model with the

Re: [R-sig-phylo] Error message when running gls with estimated lambda

2015-11-02 Thread Antonella Soro
dear all, like kari allen in june 2011, i am trying to "to run Pagels GLS in R and I have consistently encountered an error message (see script and error message below). When I fix the lambda value to 0 or 1, I do get a result, but when I let lambda vary (ie. set "fixed=F" instead of "fixed=T"),

[R-sig-phylo] Error message when running gls with estimated lambda

2011-06-04 Thread Kari Allen
Hi all, I am trying to run Pagels GLS in R and I have consistently encountered an error message (see script and error message below). When I fix the lambda value to 0 or 1, I do get a result, but when I let lambda vary (ie. set "fixed=F" instead of "fixed=T"), I get an error message. I believe thi