[Numpy-discussion] When was the ddof kwarg added to std()?

[Charles R Harris]

On Wed, Mar 16, 2011 at 6:52 AM, Darren Dale <dsdale24 at gmail.com> wrote:

> Does anyone know when the ddof kwarg was added to std()? Has it always
> been there?
>
>
IIRC, a few years back there was a long thread on the list about unbiased vs
biased estimates of std and ddof may have been added then... or it may have
been there from the beginning. I don't know.

Chuck
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