Hello! I have a matrix:

> dim(data1)
[1] 34176   581

of 34176 rows and 581 columns,

I want to make a new matrix data2 by taking the 2nd column, 9th column, 16th
column....

the column number is in the order of:

2
9 (2+7)
16 (9+7)
23 (16+7)
...

the new matrix data2 should include 83 columns, is there an easy way to
do that using cbind() function?

Thanks a lot!

Allen

	[[alternative HTML version deleted]]

