Forgive me. I was under the mistaken impression that this forum was about Perl programming. Perl I know, and enjoy offering help regarding, and despite my other shortcomings, I hoped my comment might be helpful. I was also under the impression, perhaps mistakenly, that the person asking the question knew what the function was, and didn't need to be told this or how to work it mathematically.

In reply to Re^3: finding R-squared..please help by LonelyPilgrim
in thread finding R-squared..please help by david_lyon

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