I can't install the devel version of BioC on Linux FC2 (or on Windows from source) because Biobase 1.6.3 fails with this error: In method for function "split": expanding the signature to include omitted arguments in definition: drop = "missing" Error in .MakeSignature(new("signature"), def, signature) : the names in signature for method (x, f, ) do not match function's arguments (x, f, drop) Error: unable to load R code in package 'Biobase' Error: package/namespace load failed for 'Biobase' > sessionInfo() R version 2.2.0, 2005-07-26, i686-pc-linux-gnu attached base packages: [1] "tools" "methods" "stats" "graphics" "grDevices" "utils" [7] "datasets" "base" other attached packages: reposTools "1.6.0" Best, Jim -- James W. MacDonald Affymetrix and cDNA Microarray Facility University of Michigan Comprehensive Cancer Center 1500 E. Medical Center Drive Ann Arbor MI 48109

On 27 Jul 2005, jmacdon at med.umich.edu wrote: > I can't install the devel version of BioC on Linux FC2 (or on > Windows from source) because Biobase 1.6.3 fails with this error: > > In method for function "split": expanding the signature > to include omitted arguments in definition: drop = "missing" > Error in .MakeSignature(new("signature"), def, signature) : > the names in signature for method (x, f, ) do not match function's > arguments (x, f, drop) > Error: unable to load R code in package 'Biobase' > Error: package/namespace load failed for 'Biobase' The split function was recently changed in R-devel causing an incompatibility with code that defines methods for split. I've just checked in a fix to Biobase (1.6.4) that passes R CMD check (warnings, no errors) and loads up fine for me on OS X. A source package should be available tomorrow. + seth