[R] How to apply the Wilcoxon test to a hole table at once?

[Iurie Malai]

Hi,

I have a data set:

> Dataset
        X1 X2 X3 X4 X5 X6 X7 X8 X9 X10 X11 X12 X13 X14 X15 X16 X17
1 user1  m 22 19 28 24 12 18  9   7   4   5   4   7   5   7   9
2 user2  f 25 19 23 18 18 15  6   8   6   6   7  10   7   7   7
3 user3  f 28 21 24 18 15 12 10   6   7   9   5  10   5   9   5
4 user4  f 26 19 26 21 12 18  6   6   5   1   3   8   6   5   6
5 user5  m 21 22 26 18  9  6  4   6   1   7   2   4   4   6   4
6 user6  m 24  8 25 12 18 12  7   8   4   1   4   6   7   5   6
...............................................................
71 user71  m 18  4 10  6  3  6  9   5  10   8   4   5   6   5   5

I can apply the Wilcoxon test on each column one by one, but how to do this
on the hole table at once?

> wilcox.test(X3 ~ X2, alternative="two.sided", data=Dataset)

	Wilcoxon rank sum test with continuity correction

data:  X3 by X2 
W = 439, p-value = 0.1291
alternative hypothesis: true location shift is not equal to 0 

>

I researched on this, but I can't find a solution.
I would really appreciate any help. 

P.S. Excuse my lack of terminology :).

Iurie Malai
Moldova Pedagogical State University
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