[R] nlme package: changing reference for varIdent parameter estimates in summary.gls

Dear R experts, I am running gls models with heterogeneous group variances using the glm function in the nlme package with varIdent weights. I am interested in controlling the baseline level for the group variance function standard deviation estimates by applying the relevel function to the

Re: [R] nlme package: changing reference for varIdent parameter estimates in summary.gls

that a reasonable answer can be extracted from a given body of data. ~ John Tukey -Oorspronkelijk bericht- Van: R-help [mailto:r-help-boun...@r-project.org] Namens Kornak, John Verzonden: dinsdag 23 december 2014 22:29 Aan: r-help@R-project.org Onderwerp: [R] nlme package: changing reference