kwgoodman/bottleneck — pull request #51 by jmcloughlin (2012-09-06 19:19:33+00:00)
Title: BUG move_std and move_nanstd neg sqrt bugs fixed

In cases where the sum of squared residuals (part of the std
calculation) was 0, precision erros were producing negative values.
This was fixed by checking for this condition and replacing negative
values with 0.