patch proposal for hist

[Lars Winterfeld]

Hi,

I want to propose a patch that changes the default number of bins of the hist()
function.

Currently, the default choice is 10. This respects neither the number of data
points nor estimated properties of the distribution. Here, I propose the follow
Freedman-Diaconis' choice, see
https://en.wikipedia.org/wiki/Histogram#Number_of_bins_and_width . How to
calculate the "perfect number of bins" is matter of taste and depends on the
unknown distribution. Still, Freedman-Diaconis is a fairly good choice for
reasons explained in the above Wikipedia article. In any case, it is better than
"10".

Cheers,
Lars

hist.patch
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