Re: [R] Problem with factors in lm() when using Rscript but not GUI

2010-03-22 Thread Prof Brian Ripley
Soemone broke contrasts<- in 2.10.0 to require the 'methods' package, but this was corrected in R-patched on Jan 4. Thus you need to add 'methods' to the default packages in Rscript (see its help) or update your R. This has come up before, so a search of the archives was likely to have found

Re: [R] Problem with factors in lm() when using Rscript but not GUI

2010-03-22 Thread Paul Rustomji
Found the solution - already posted here http://n4.nabble.com/Rscript-question-td1067729.html#a1067729 Basically Rscript does not automatically load library(methods) like Rgui does... -- View this message in context: http://n4.nabble.com/Problem-with-factors-in-lm-when-using-Rscript-but-not-GU

[R] Problem with factors in lm() when using Rscript but not GUI

2010-03-22 Thread Paul.Rustomji
Hello R-help I am having a curious problem. I am using a batch file to call an R script and am getting an error when performing a lm() fit using factorial data only when running in batch mode (see below). I do not get the error when executing the same code in GUI mode in R 2.10.1. Nor do I g