Hi !

Could anyone let me know as how I can do a wilcoxon signed rank test for data frames. I saw some people have attempted to explain at the stack flow. 

link : http://stackoverflow.com/questions/21271449/how-to-apply-the-wilcox-test-to-a-whole-dataframe-in-r

I have a huge data frame of 360,000 probes and 24 subjects.

I am trying to use this script 

out <- lapply(df, function(x) pairwise.wilcox.test(d[[x]], d$group))

names(out) <- names(d)
out

I keep getting the error 

> out <- lapply(df, function(x) pairwise.wilcox.test(d[[x]], d$group))

Error in .subset2(x, i, exact = exact) : 
  recursive indexing failed at level 2

Any help would be really great

Thank you

smeeta

My df is 360k x 24