Hello everyone,
We are soliciting feedback and comments on a new MEP (#28) proposing some
high-level changes to the boxplot API has been released in *draft* form
here:
http://matplotlib.org/devdocs/devel/MEP/MEP28.html
The goals of the MEP are as follows:
1) Deprecate and remove seldom used*, difficult-to-use, and redundant**
kwargs
2) Synchronize parameter names between `boxplot` and `bxp`
3a) Allow user-defined pre- and post-stat calculation data transformation
functions to `boxplot`
OR
3b) Allow users to pass their own statistics function (with parameters) to `
boxplot`
The functionality of #3a/3b is currently available to users if they go
through the `bxp` function instead of the `boxplot` function. However, this
isn't much help for users of downstream libraries like pandas and seaborn.
The goal of #3 in general is to allow the following in e.g., seaborn:
import seaborn
tips = seaborn.load_data('tips')g = seaborn.factorplot(x="day",
y="total_bill", hue="sex", data=tips,
kind='box', palette="PRGn", shownotches=True,
statfxn=my_box_stats, bootstrap_method='BCA',
whisker_method='dynamic')
This kind of flexibility would also be available under the current pandas
API.
This MEP is very much still a draft and has not been accepted. If you have
opinions about the proposed changes (positive or negative) we're all ears.
-Paul H.
* It is our perception that the usermedians and conf_intervals parameters
don't get much use and are fairly difficult use. Additionally, the logic
that handles and validates them is quite complex and difficult to maintain.
** The sym parameter is redundant with the flierprops parameter, which has
been around for a few releases now. The code that reconciles the default
marker style with both of these inputs is also complex and difficult to
maintain.
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