reproducible example
b1 <- c(42.5565911271682, 27.5164947336246, 39.483642950093,
103.942262842055, 36.0059074090041, 38.5628716462492, 30.4961003157125,
41.4309 .... [TRUNCATED]
b2 <- c(32.38938053, 22.44444444, 33.05454545, 42.21176471,
40.10869565, 29.80952381, 24.79452055, 25.18518519, 37.09677419,
31.32727273)
cor.test(b1, b2, method = "spearman")
Spearman's rank correlation rho data: b1 and b2 S = 66, p-value = < 2.2e-16 alternative hypothesis: true rho is not equal to 0 sample estimates: rho 0.6
R.version
_ platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status major 1 minor 8.0 year 2003 month 10 day 08 language R
-----Original Message----- From: Prof Brian Ripley [mailto:ripley@stats.ox.ac.uk] Sent: 22 October 2003 11:52 To: i.wilson@maths.abdn.ac.uk Cc: r-devel@stat.math.ethz.ch; R-bugs@biostat.ku.dk Subject: Re: [Rd] Something strange in cor.test in R-1.8.0 (PR#4718) Without knowing the seed used it is impossible for us to reproduce this, but I am not seeing anything strange. Could you please reply with a reproducible example (and list the data used too, in case the random number generation is the issue).
On Wed, 22 Oct 2003 i.wilson@maths.abdn.ac.uk wrote:
Full_Name: Ian Wilson Version: R-1.8.0 OS: Windows (but own compilation) Submission from: (NULL) (139.133.7.38) the p-value is incorrect for cor.test using method "spearman" in R-1.8.0.
This
was not the case in R-1.7.1. Version R-1.8.0 on Windows
cor.test(rnorm(50),rnorm(50),method="spearman")
Spearman's rank correlation rho
data: rnorm(50) and rnorm(50)
S = 20486, p-value = < 2.2e-16
alternative hypothesis: true rho is not equal to 0
sample estimates:
rho
0.01627851
cor.test(rnorm(50),rnorm(50),method="spearman")
Spearman's rank correlation rho
data: rnorm(50) and rnorm(50)
S = 22006, p-value = 1
alternative hypothesis: true rho is not equal to 0
sample estimates:
rho
-0.05671068
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-- Brian D. Ripley, ripley@stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595