Try using do.call:

do.call(list, as.list(mycommand))

On Mon, Jan 12, 2009 at 1:58 PM, Skotara <nils.skotara@uni-hamburg.de>wrote:

> Thank you Patrick and Gabor!
> Sorry, I think I have not explainend it well.
> The purpose is as follows:
>   names <- letters[1:3]
>   values <- data.frame(a = 1:3, b = 4:6, c = 7:9)
> With more complicated objects similar to 'names' and 'values' I wrote the
> following line to assign the elements of the list:
>   mycommand <- parse(text = paste(names, " = values[\"", names, "\"]",
> sep="") )
> However,
>   list(eval(mycommand))
> does not do what I want.
> whereas
>   list(a = values["a"], b = values["b"], c = values["c"])
> does.
>
> I can not tell why...
> I try to understand, what expression and eval do. I know that many times
> there are other ways to achieve the same goal.
> So here, too. But I think there should be a reason why it does not work
> that way.
>
>
> Best regards!
> Nils
>
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> PLEASE do read the posting guide
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> and provide commented, minimal, self-contained, reproducible code.
>



-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O

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