[R] subset of a dataframe

[Steve Lianoglou]

Hi,

On Fri, Dec 3, 2010 at 11:26 AM, alcesgabbo <alcesgabbo at hotmail.com> wrote:
>
> HI,
> I have a dataframe like this:
>
> name    type
> A          t1
> B           t2
> C          t1
> D           t1
> E           t3
> F            t2
>
> how can I have a "sub dataframe" based with the column "type" like this:
>
> (for type = t1)
>
> name    type
> A          t1
> C          t1
> D           t1

Let's say your data.frame is stored in a variable named "df":

R> subset(df, type == 't1')

Read the help files:

R> ?subset

Also take a look at ?split

-steve
-- 
Steve Lianoglou
Graduate Student: Computational Systems Biology
 | Memorial Sloan-Kettering Cancer Center
 | Weill Medical College of Cornell University
Contact Info: http://cbio.mskcc.org/~lianos/contact