[R] extract subset of data.frame

[Sarah Goslee]

> df[df$value %in% v,]
  group value
2     B     2
3     C     3


df is a function; you're better off not using that name for your
dataframe.

Sarah

On Thu, Feb 23, 2012 at 10:48 AM, syrvn <mentor_ at gmx.net> wrote:
> Hello,
>
>
> consider the following data.frame df and vector v
>
> df <- data.frame(group = c("A","B","C","D"), value = c(1,2,3,4))
> v <- c(2,3)
>
> How can I return a sub data.frame which has only the rows left where value
> matches v
>
> df:
>
> group value
> B 2
> C 3
>
>
> Cheers
>
> --


-- 
Sarah Goslee
http://www.functionaldiversity.org