Add support for per-category width on boxplot.

[elmer-garduno]

Support per-category width on boxplot. As discused on #1668, this is done by passing an array of widths on the sns.boxplot(width) argument.

Please let me know if this makes sense. I can add further testing.

[codecov]

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@@            Coverage Diff            @@
##             master    #1962   +/-   ##
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seaborn/algorithms.py	100.00% <0.00%> (ø)
seaborn/axisgrid.py	94.98% <0.00%> (ø)
seaborn/matrix.py	95.08% <0.00%> (ø)
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seaborn/regression.py	96.17% <0.00%> (ø)
seaborn/categorical.py	96.37% <0.00%> (ø)
seaborn/__init__.py	100.00% <0.00%> (ø)
... and 2 more

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[mwaskom]

I think that if this were going to be supported, it would have to be similar to how that option works in violinplot.

[elmer-garduno]

Thanks, you mean in terms of preserving the area? Or in terms of automatically using the number of samples to determine the relative width?

…

On Fri, Feb 14, 2020, 4:37 PM Michael Waskom ***@***.***> wrote: I think that if this were going to be supported, it would have to be similar to how that option works in violinplot. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#1962?email_source=notifications&email_token=AAJGIIGNHOFRDGGC53I74UDRC42M5A5CNFSM4KVRIXFKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEL24MGI#issuecomment-586532377>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAJGIICHD4IC62P3OJ7O4N3RC42M5ANCNFSM4KVRIXFA> .

[elmer-garduno]

I see, do you mean using the scale parameter instead and preserve the semantics of weight as they are? If so that makes sense, let me try it.

…

On Fri, Feb 14, 2020, 5:51 PM Elmer ***@***.***> wrote: Thanks, you mean in terms of preserving the area? Or in terms of automatically using the number of samples to determine the relative width? On Fri, Feb 14, 2020, 4:37 PM Michael Waskom ***@***.***> wrote: > I think that if this were going to be supported, it would have to be > similar to how that option works in violinplot. > > — > You are receiving this because you authored the thread. > Reply to this email directly, view it on GitHub > <#1962?email_source=notifications&email_token=AAJGIIGNHOFRDGGC53I74UDRC42M5A5CNFSM4KVRIXFKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEL24MGI#issuecomment-586532377>, > or unsubscribe > <https://github.com/notifications/unsubscribe-auth/AAJGIICHD4IC62P3OJ7O4N3RC42M5ANCNFSM4KVRIXFA> > . >

[mwaskom]

This is now obviated (without explicit effort to enable it) by #3294:

sns.boxplot(data=tips, x="day", y="total_bill", widths=[.2, .4, .6, .8])

It doesn't work with hue; enabling that would be rather difficult and I lean not worth it.

Thanks for your interest!