[SciPy-user] quantile function in scipy
Manu Hack
manuhack@gmail....
Sun Feb 24 00:13:53 CST 2008
On Sun, Feb 24, 2008 at 12:58 AM, David Cournapeau
<david@ar.media.kyoto-u.ac.jp> wrote:
>
> Manu Hack wrote:
> > Hi,
> >
> > I'd like to know if there is any function to find the quantiles, given
> > two lists where one is the value and another the frequency.
> >
> > For example, v = [1, 2, 3], freq = [3, 2, 1], then I would like to
> > have the quantiles for the samples: 1, 1, 1, 2, 2, 3.
> >
> > Have browsed around the doc of scipy.stats but didn't get any thing
> > close. Thanks a lot.
> >
> >
> Would scipy.stats.percentileofscore solve your problem ?
It's close. But the problem is that the freq list in my application
is going to be a huge number so to make a list from v and freq to put
in that function may not be feasible.
I looked at the source code, in the comment it suggests the Gnu R
functions. So I may be using the wtd.quantile under Hmisc library of
R via rpy.
Thanks.
Manu
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