Hello Brima,
I might be missing something, but how is that theoretically done ?


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On Tue, Oct 5, 2010 at 4:02 AM, Brima <adamsteve2...@yahoo.com> wrote:

>
> Hi all,
>
> I have used the predict function to forecast values but now I would like to
> compute an R squared value for the prediction based on the original model.
>
> Any suggestions?
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