[R] shapiro.test()

reso at uni-potsdam.de reso at uni-potsdam.de
Tue Jun 26 16:43:42 CEST 2012


Hey,
today I wanted to use the shapiro.test() on data containing 3  
numerical values per group.
It is the first time that an NA was given back for some of the groups.
In the follwing an example of code and output is shown:


> shapiro.test(c(0.000637806, 0.00175561, 0.001196708))

	Shapiro-Wilk normality test

data:  c(0.000637806, 0.00175561, 0.001196708)
W = 1, p-value = NA

I am not able to find the bug in our data, so I think there might be a  
problem with the shapiro.test().

I use the following technical background:

platform       x86_64-pc-linux-gnu
arch           x86_64
os             linux-gnu
system         x86_64, linux-gnu
status
major          2
minor          14.1
year           2011
month          12
day            22
svn rev        57956
language       R
version.string R version 2.14.1 (2011-12-22)


Thanks,
Judith



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