Re: [R] drc results differ for different versions

at I suppose this also means I don't have to do the log transformation anymore? Thanks (both of you) for your swift feedback Hans -Original Message- From: Christian Ritz [mailto:r...@life.ku.dk] Sent: vrijdag 22 mei 2009 11:30 To: Hans Vermeiren Cc: r-help@r-project.org; marc_schwa...@

Re: [R] drc results differ for different versions

Hello Thanks a lot Marc, for the suggestion to explore the issue a bit more systematically So I did and the conclusion is that with the old drc 1.4-2, I get a SE=0.003, with the new drc 1.5-2, I get a SE=0.4 irrespective of the R version or the version of the packages drc depends on I hope somebod

[R] drc results differ for different versions

trust the values we get with the older versions more Has anyone suggestions on - how to solve these discrepancies, if possible - how to calculate which one of the 2 solutions is the correct one? Thanks a lot, Hans Vermeiren Demo (on a windows machine, while the issue was actually discovered on our