Illigal parameter in pt()!

[rchekaluk]

This simple snippet:

require 'savanna-outliers'
p Savanna::Outliers.remove_outliers([0.082499, 0.0825, 0.9], :all)

issues an error even though it appears to return a correct result:

Error : Illigal parameter  in pt()!
[0.082499, 0.0825]

[chriso0710]

Yep, same problem here.

Comes from
https://github.com/abscondment/statistics2/search?q=illigal&unscoped_q=illigal

Throws error message but result looks ok.
I'm simply ignoring it for now. I'm suppressing stderr messages for my rails minitests. Seems to be the quickest solution to the somewhat verbose statistics gem.