[R] chisq test with for loop

downunder larsfromspace at web.de
Wed Nov 8 04:14:40 CET 2006


Hi all.

i am desperating. i need a matrix of p.values from an chi square test.  i
had it already work but than my computer collapsed when taking the whole
data set 800x260 into account. i am sure it looked like this but it doesn't
work now. can anybody help me? thanks in advance.

x=read.table("C:\...)
d=ncols(x)
z<=matrix(0,d,d)
for(i in 1:d)
for(j in 1:d)
z[i,j]<=chisq.test(x[,i],x[,j])$p.value
round(z,3)
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