[R] How to subset a portion of columns from a matrix

[Julian Burgos]

There are many ways. For example, you can do something like

A[seq(1,dim(A)[2],2)]

Julian
 
Julian M. Burgos

Fisheries Acoustics Research Lab
School of Aquatic and Fishery Science
University of Washington

1122 NE Boat Street
Seattle, WA  98105 

Phone: 206-221-6864



affy snp wrote:
> Dear List,
>
> Hi! I am wondering what is the simplest way to subset a portion of columns
> from a matrix.
>
> For example, there is a matrix A (238,304*243). What is the simplest
> way to get a sub-matrix B which comprises of column 1, 3, 5, 7,9,...(odd column
> number) from matrix A?
>
> Thank you very much for your help!
>
> Best,
>      Allen
>
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