[R] Odp: create variables with indexes
Petr PIKAL
petr.pikal at precheza.cz
Wed Jul 14 09:34:56 CEST 2010
Hi
r-help-bounces at r-project.org napsal dne 14.07.2010 00:44:02:
> Hi, there:
>
> Suppose I want create variables with indexes in their names, e.g.,
X_1_1,
> X_1_2, X_1_3, ..., X_1_10, X_2_1, X_2_2, X_2_3, .. X_2_10,..., X_10_1,
> X_10_2, ... X_10_10. It looks like I need to use 2 indexes I and J so I
is
> looped from 1 to 10, and J is looped from 1 to 10. But I don't know how
to
> automatically produce X with these combination of indexes. Should I use
paste
> function? Can someone help?
I would make a character vector, which I could use in further naming
purpose.
paste(paste("x", rep(1:10, 10), sep="_"), rep(1:10, each=10), sep="_")
But why not to use lists?
Petr
>
> Thanks.
>
> Yulei
>
>
> [[alternative HTML version deleted]]
>
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