>>>>> Peter Dalgaard writes: > Kurt Hornik <[EMAIL PROTECTED]> writes: >> >>>>> maechler writes: >> >> >>>>> "Duncan" == Duncan Murdoch <[EMAIL PROTECTED]> >> >>>>> on Wed, 22 Oct 2003 08:17:32 -0400 writes: >> Duncan> I've now tried the code >> >> > set.seed(1) >> > x <- rnorm(50) >> > y <- rnorm(50) >> > cor.test(x,y,method="spearman") >> > x <- rnorm(50) >> > y <- rnorm(50) >> > cor.test(x,y,method="spearman") >> Duncan> in r-patched (which gives apparently correct results), and r-devel, Duncan> which gives the first result correct, the second incorrect; when Duncan> repeated, both are bad. >> > Hmm, >> > funny. >> >> > I get repeatable results in in R 1.7.1 , 1.8.0, R-patched and >> > R-devel (all on Linux), >> >> > with an (ugly but convenient) 1-liner : >> >> >> set.seed(1); for(k in 1:2){x <- rnorm(50);y <- >> >> rnorm(50);print(unlist(cor.test(x,y,method="spearman")[1:4]))} >> > statistic.S p.value estimate.rho >> > 23640.0000000 0.3482088 -0.1351741 >> > statistic.S p.value estimate.rho >> > 1.724800e+04 2.322263e-01 1.717647e-01 >> >> I get the same on Debian GNU/Linux. >> >> Where do we stand on this? Windows-specific?
> Probably, but of a nasty kind which I think we need to get to the > bottom of. As I see it there are two possible causes > 1. A bug in a Windows library or compiler. Potentially that could > affect everything else. > 2. A bug in ctest that just happens only to cause visible damage on > Windows, but perhaps invisible damage elsewhere. > Either way, I think we need to investigate. As Brian had written earlier in this thread, we need a reproducible example. If Duncan's example can be reproduced on Windows but not on Linux (and I cannot), odds are in favor of the problem being Windows specific. -k ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-devel