[R] Different PCA results under Windows and Linux

[jathine]

I ran the following R script under both Linux and Windows, and got 2
different results.
Linux R version 2.7.1 and Windows R version 2.7.2.

> library(FactoMineR)
>x1=read.table("freqtest.txt",header=TRUE)
>xrcc2=x1[,1:8]
>p1=PCA(xrcc2, graph=FALSE)
>p1$var

freqtest.txt file lines of text :
M1 M2 M3 M4 M5 M6 M7 M8
-1 -1 -1 -1 -1 -1 -1 -1
0 0 0 0 -1 -1 1 1
-1 -1 -1 -1 -1 -1 -1 -1
0 0 0 0 -1 -1 1 1 

I also tried mean(xrcc2) and sd(xrcc2) on both machines, the results are the
same. 
Please explain.


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