Hi Nellie,

hope I got you right. I guess you want something like that.

for (i in 1:7) {
   oneOfNelliesArray <- eval(parse(text=paste("grp",i, sep="")))
   anyFunction(oneOfNelliesArray)
}

Paste() just returns you a string. But you want R to evaluate the
expression. So you have to parse it and tell R to evaluate it.

Christoph

2011/10/10 song_gpqg <song_gpqg@126.com>

> Hello!
> So I am handling this problem with some arrays grp1-grp7, I want to write a
> loop to avoid tedious work, but I don't know how to transform string to
> boor?
> For example I used
> i=1
> paste("grp",i, sep="")
> I only got "grp1" instead of grp1, which can't be manipulate using mean()
> or
> other function.
>
> I am not sure if I make myself clear...
> THANKS!!!!
>
> Nellie
>
>
>
> --
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