R help - Nov 2006 - chisq test with for loop

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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i think you need braces after your for statements.  there might be other
issues as well, but that's the first that i noticed

tim

On 11/8/06, downunder <larsfromspace@web.de>
wrote:
>
>
> 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)
> --
> View this message in context:
> http://www.nabble.com/-R---chisq-test-with-for-loop-tf2593044.html#a7232065
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
> R-help@stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>


-- 
Tim Calkins
0406 753 997

	[[alternative HTML version deleted]]

I have it work. so far thanks for your help. lars

working code

z<-matrix(0,d,d) 
z
for (i in 1:d)
for (j in 1:d)
z[[i,j]]<-chisq.test(x[,i], x[,j])$p.value
round(z,3)





downunder wrote:
> 
> 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)
> 
-- 
View this message in context:
http://www.nabble.com/-R---chisq-test-with-for-loop-tf2593044.html#a7232360
Sent from the R help mailing list archive at Nabble.com.