[R] creating a file of p.values

[jim holtman]

Try something like this (untested):

Pvalues <- lapply(1:25, function(x)get(paste("A", i, sep=""))$p.value)

On Wed, Nov 12, 2008 at 11:15 AM,  <lave0083 at umn.edu> wrote:
> Hi all,
> I am performing hundreds of kruskal wallis tests and trying to figure out
> how to create a file of the p.values I obtain.
>
> This is the code I use for the tests:
> A2<-kruskal.test(X2~treatment)
> A3<-kruskal.test(X3~treatment)
> A4<-kruskal.test(X4~treatment)
> A5<-kruskal.test(X5~treatment)
> A6<-kruskal.test(X6~treatment)
> A7<-kruskal.test(X7~treatment)
> A8<-kruskal.test(X8~treatment)
> A9<-kruskal.test(X9~treatment)
> ect
>
> and I can get the p values from each one individually by:
> A2$"p.value"
>
> I was hoping to figure out how to make one list of all of the p values I
> need without having to type each one seperately
>
> I tried
>>
>> list1<-list(A1$"p.value":A3$"p.value")
>> list1
>
> [[1]]
> [1] 0.8419078
> but you see this only gives me the first p-value when I was trying to get 3.
>
> I also tried
>>
>> list1<-list(A1$"p.value", A2$"p.value")
>> list1
>
> [[1]]
> [1] 0.8419078
>
> [[2]]
> [1] 0.1127509
>
> and this works but I would have to type them all out.
> If anyone is aware of a shortcut that would be helpful. Thanks
>
> ______________________________________________
> R-help at r-project.org 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.
>



-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem that you are trying to solve?