Create a patch and upload that patch to the module's bug tracker. That way, others will be able to see your patch and apply it locally even if the author does not apply it. If you don't get a response within a few days, you could send an email to the author. There is one author listed in the POD for Statistics::Regression, but two are listed in RT.

Refer to:

In reply to Re^2: using Statistics::Regression by toolic
in thread using Statistics::Regression by Random_Walk

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