[R] MAC OSX vs Win XP: Different stats test results!

2009-05-18 Thread Mareen
Hi all, I wondered whether anyone has some advice on a stats-related 'sanity check', as I ran a nonparametric multivariate test (mulrank function as decribed by R. Wilcox, 2005) on both systems, but got different results (please see below for the system-specific outputs)! The functions I used are

Re: [R] MAC OSX vs Win XP: Different stats test results!

2009-05-18 Thread Peter Dalgaard
Mareen wrote: Hi all, I wondered whether anyone has some advice on a stats-related 'sanity check', as I ran a nonparametric multivariate test (mulrank function as decribed by R. Wilcox, 2005) on both systems, but got different results (please see below for the system-specific outputs)! The functi

Re: [R] MAC OSX vs Win XP: Different stats test results!

2009-05-18 Thread Mike Lawrence
If mulrank does any sort of random number generation or non-exhaustive randomization, you should set the seed of the random number generator first: set.seed(1) mulrank(3,6,data03$x) On Mon, May 18, 2009 at 7:37 AM, Mareen wrote: > > Hi all, > I wondered whether anyone has some advice on a stats

Re: [R] MAC OSX vs Win XP: Different stats test results!

2009-05-18 Thread Mareen Weber
Hello Peter, thanks for your quick response - you have hinted into the right direction. I triple-checked my data and - how embarrassing - I actually did have different data matrices. Due to a faulty Win Excel macro that sorted data into groups after data collection, I ended up with different da

Re: [R] MAC OSX vs Win XP: Different stats test results!

2009-05-18 Thread Mike Lawrence
A good example of why manipulating data in external programs is dangerous. See a discussion of this at http://tolstoy.newcastle.edu.au/R/e6/help/09/05/13697.html On Mon, May 18, 2009 at 10:56 AM, Mareen Weber wrote: > > Hello Peter, > thanks for your quick response - you have hinted into the righ