2012/1/19 Arno Onken <asn...@asnelt.org>:
> On 01/19/2012 05:38 PM, Carnë Draug wrote:
>> I have just removed the strtrim funtion from the string package.
>>
>> I want to do the same for the zscore function from the statistics
>> package. Is there any reason not to so?
>
> Removing the zscore function from the statistics package might break
> legacy code. Compared to the Octave core zscore function, the zscore in
> the statistics package also returns the mean and standard deviation.
> The best way to deal with this would probably be to change the Octave
> core function to also return mean and standard deviation and then to
> remove the zscore function from the statistics package. However, the
> core zscore function uses the center function instead of calculating the
> mean directly. So changing the core zscore function would complicate it
> considerably.
Nah, zscore is basically
mu = mean(X);
sigma = std(X)
out = (X - mu)./sigma ##Except this still warns for now, sigh...
It's pretty easy to change it return the mean and standard deviation.
Since Matlab's zscore does this too, it's a Matlab-chasing bug
anyways.
I've pushed this change to the default branch:
http://hg.savannah.gnu.org/hgweb/octave/rev/938a8d792c37
HTH,
- Jordi G. H.
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