Re: [R] gam error message: matrix not +ve definite

2012-10-08 Thread Simon Wood
Hi Dan, Any chance that you could send me the data offlist and I'll take a look (under the understanding that I'll only use the data for de-bugging of course)? Could you also let me know which linux distribution you are using, whether it's 64bit or 32 bit, and, if possible, what BLAS R is

[R] gam error message: matrix not +ve definite

2012-10-07 Thread garth
Hello, I'm running a multimodel analysis which involves fitting several GAM models as implemented in package mgcv. The issue I'm having is that when I try to fit my model, gam gives me the following error message: 'Error in initial.sp(w * X, S, off) : S[[2]] matrix is not +ve definite.' The

Re: [R] gam error message: matrix not +ve definite

2012-10-07 Thread R. Michael Weylandt
On Sun, Oct 7, 2012 at 3:00 PM, garth dbo...@dal.ca wrote: Hello, I'm running a multimodel analysis which involves fitting several GAM models as implemented in package mgcv. The issue I'm having is that when I try to fit my model, gam gives me the following error message: 'Error in