[R] how to select out some columns using cbind()

[jim holtman]

newdata1 <- data1[, seq(from=2, to=ncol(data1), by=7)]

On Sat, Jun 14, 2008 at 7:27 PM, ss <affysnp at gmail.com> wrote:
> 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]]
>
> ______________________________________________
> 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 you are trying to solve?