Since t.test takes much more time than parsing loop, I
won't hesitate to do a loop on the columns.
--- sata pinal [EMAIL PROTECTED] wrote:
I have two matrix with same dimensions. I want to do
t.test using each column from 2 different matrix.
Row n Column names in both matrix are same.
sapply(1:4000, function(k){
t.test(Matrix1[,k], Matrix2[,k])$p.value
})
I did not test, though.
HTH,
Weiwei
On 11/19/07, sata pinal [EMAIL PROTECTED] wrote:
I have two matrix with same dimensions. I want to do t.test using each column
from 2 different matrix.
Row n Column names in both
I have two matrix with same dimensions. I want to do t.test using each column
from 2 different matrix.
Row n Column names in both matrix are same.
e.g.
Matrix1
id VC1 VC2 VC3
R 1 2 3
R1 4 5 6
R3 7 8 9
Matrix2
id VC1 VC2 VC3
R 10 11 12
R1 13 14 15
R3 16
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