[GRASS-dev] r.stats.quantile: does the 50th percentile equal to the median?

[Markus Metz]

On Fri, Jan 22, 2021 at 2:51 PM <nik at nikosalexandris.net> wrote:
>
> Hi devs,
>
> does the default `percentiles=50` in `r.stats.quantile` equal to the
> median?
> Is the definition exclusive or inclusive?

The median is commonly defined as the 50% percentile, the "middle" item of
a sorted dataset. See
https://en.wikipedia.org/wiki/Median

In GRASS, calculations of the median and the 50% percentile are identical.

HTH,

Markus M


>
>
> Thank you for any insight, Nikos
> --
>
> See also
> - https://en.wikipedia.org/wiki/Percentile
> - https://math.stackexchange.com/q/2048470/445399
>
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