Hi
the output should look like r <- subset(tab, a==v)
but now I have something like r <- subset(tab, "a"==v)
and r <- subset(tab, [["a"]]==v)
does not work :(
greetings
Christof
Am 05-01-2012 16:51, schrieb Christof Kluß:
> Hi
>
> I want to do something like
>
> a <- c(10,20,15,43,76,41,25,46)
> tab <- data.frame(a)
>
> name <- "a"
>
> for (v in unique(tab[[name]])) {
> r <- subset(tab, name==v) # this does not work
> ...
> }
>
> i.e. a "string" on the left side of the select expression (subset). How
> could I solve this?
>
> thx
> Christof
>
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