Try this:
subset(d, eval(parse(text = paste(paste(columns, values, sep = "=="),
collapse = " & "))))
On Wed, Jun 24, 2009 at 9:16 AM, Blazej Krzeminski <bkr...@gmail.com> wrote:
> Hello
>
> I have a data frame d with columns "var1", "var2", "var3"
>
> Then I have two vectors:
> columns <- c("var2", "var3")
> values <- c(0, 1)
>
>
> Is there a compact way to subset the data frame
> using these two vectors and get the result equivalent to:
>
> select (d, var2==0 & var3==1) ?
>
> Thank You
>
> Blazej
>
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>
--
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O
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