[SciPy-dev] RFR: Proposed fixes in scipy.stats functions for calculation of variance/error/etc.

[Ariel Rokem]

Hi Pierre,

I agree - let's see how we work things out for stats and then, we can
copy over whatever behavior we settle on to mstats as well.

Cheers,

Ariel

On Sun, Oct 25, 2009 at 10:18 PM, Pierre GM <pgmdevlist at gmail.com> wrote:
>
> On Oct 26, 2009, at 12:59 AM, josef.pktd at gmail.com wrote:
>>
>> zs was the list version for the zscore using z to calculate, the
>> translation in
>> the next changeset is correct only for 1d or raveled arrays, but it
>> is missing
>> an axis argument. It looks like z was a helper function for a scalar
>> score.
>> zmap got imported in this form in revision 71.
>>
>> stats.mstats has the same functions, but they look like literal
>> translations
>> since they have the same (ambiguous) treatment of axis if it's not 1d.
>> stats.mstats.z has ddof=1, the others ddof=0
>
> well, maybe it's time to start cleaning up mstats. For the z
> functions, that should be straightforward, provided we don't lose the
> mask with np.asarray (a np.asanyarray would be sufficient). In that
> case, we could probably drop support for them in mstats. At least, we
> should make sure that the mstats versions have the same defaults as
> the stats ones.
>
>
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-- 
Ariel Rokem
Helen Wills Neuroscience Institute
University of California, Berkeley
http://argentum.ucbso.berkeley.edu/ariel