[R] BiodiversityR GUI error message

Dear List, I have just got a laptop with win 7 64 bit installed on it. I installed R and quite a few packages I use. When I try to start BiodiversityR the library loads without any problems but when starting the GUI it gives me the following error message: Sourced: BiodiversityGUI.R Error :

[R] number of Excel worksheets

Dear All, I would like to count or list the names of the existing worksheets within an .xls file. Any hints? Thaks, Gabor -- Pozsgai Gábor www.coleoptera.hu www.photogabor.com __ R-help@r-project.org mailing list

Re: [R] number of Excel worksheets

to '#'.\n)     cat(Caution: Be careful with mixed-type columns that begin with\n)     cat( some (15?) rows that are only numeric.\n)     cat( Use str() and summary() to check the import.\n)     return(data) } On Fri, Feb 5, 2010 at 8:13 AM, Gábor Pozsgai pozsg...@gmail.com wrote

[R] abline does not show on plot if slope differs from 0

Hi, Does anybody have a hint why this does not work? plot(c(1991,2000), c(-1,10))abline(a=6, b=-1, col=dark grey, lty=dashed) It does not generate an error message, but the line does not turn up. If b=0 it works fine. If I change the axes of the plot to plot(c(1,10), c(-1,10)) it does work