All, I have an lme model estimated in R 2.5.1 on my Mac; when I estimate the same model on Windows, the parameter coefficients are rounded to integers. Below is a similar example for the Orthodont data. Is there some option I need to set in the Windows version to prevent rounding? Didn't see this in the archives.
Thanks, David Afshartous > sessionInfo() R version 2.5.1 (2007-06-27) i386-apple-darwin8.9.1 locale: en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8 attached base packages: [1] "stats" "graphics" "grDevices" "utils" "datasets" "methods" "base" other attached packages: nlme "3.1-84" > fm1 <- lme(distance ~ age, data = Orthodont) # random is ~ age > > fm1 Linear mixed-effects model fit by REML Data: Orthodont Log-restricted-likelihood: -221.3183 Fixed: distance ~ age (Intercept) age 16.7611111 0.6601852 Random effects: Formula: ~age | Subject Structure: General positive-definite StdDev Corr (Intercept) 2.3270338 (Intr) age 0.2264276 -0.609 Residual 1.3100399 Number of Observations: 108 Number of Groups: 27 > sessionInfo() R version 2.6.0 (2007-10-03) i386-pc-mingw32 locale: LC_COLLATE=English_United States.1252;LC_CTYPE=English_United States.1252;LC_MONETARY=English_United States.1252;LC_NUMERIC=C;LC_TIME=English_United States.1252 attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] nlme_3.1-85 foreign_0.8-23 arm_1.0-33 R2WinBUGS_2.1-6 [5] coda_0.12-1 lme4_0.99875-8 Matrix_0.999375-2 lattice_0.16-5 [9] MASS_7.2-36 loaded via a namespace (and not attached): [1] grid_2.6.0 tools_2.6.0 > fm1 <- lme(distance ~ age, data = Orthodont) # random is ~ age > fm1 Linear mixed-effects model fit by REML Data: Orthodont Log-restricted-likelihood: -221 Fixed: distance ~ age (Intercept) age 16.76 0.66 Random effects: Formula: ~age | Subject Structure: General positive-definite StdDev Corr (Intercept) 2.33 (Intr) age 0.23 -0.61 Residual 1.31 Number of Observations: 108 Number of Groups: 27 > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.