Thank all of you for your kindly help.
--- Jinsong Zhao <[EMAIL PROTECTED]> wrote:
> Dear all,
>
> I hope to remove a whole column from a data frame or matrix (> 2000
> columns). All value in the column are same. The first thing is to
> select those columns.
>
> For instance, I hope to remove
Hoi Jinsong,
--On dinsdag 3 augustus 2004 1:42 -0700 Jinsong Zhao <[EMAIL PROTECTED]>
wrote:
For instance, I hope to remove the V3~6 column, for all the value in
those colume is zero.
V3 V4 V5 V6 V7 V8 V9V10
1 0 0 0 0 0.000 0.000 0.000 0.000
2 0 0 0 0 0.000 0.000 0
On Tue, 3 Aug 2004, Jinsong Zhao wrote:
> I hope to remove a whole column from a data frame or matrix (> 2000
> columns). All value in the column are same. The first thing is to
> select those columns.
>
> For instance, I hope to remove the V3~6 column, for all the value in
> those colume is zer
03 August 2004 09:43
To: R-Help
Subject: [R] How to select a whole column? Thanks!
Dear all,
I hope to remove a whole column from a data frame or matrix (> 2000
columns). All value in the column are same. The first thing is to
select those columns.
For instance, I hope to remove the V3~6 colum
Dear all,
I hope to remove a whole column from a data frame or matrix (> 2000
columns). All value in the column are same. The first thing is to
select those columns.
For instance, I hope to remove the V3~6 column, for all the value in
those colume is zero.
V3 V4 V5 V6 V7 V8 V9
