Arviz: Variable names in element labels for `plot_forest` should be optional

[fonnesbeck]

Currently, creating a forest plot with plot_forest uses <var name> <coordinate name> as the scheme for labels on the y-axis. This creates a slew of repeated variable names in the labels, which I would guess is almost always undesirable (particularly when you have nice element labels as coordinates in the dataset):

There should be excluded by default, and turned on with a include_var_names=True (or similar) argument.

Alternatively, the first coordinate could include the variable name, and then exclude it for subsequent ones.

[AlexAndorra]

What would probably be even better is if we displayed the var_name + coords
only once and then only the coords. Not sure how much harder that would be
🤔

Le mer. 27 janv. 2021 à 20:12, Chris Fonnesbeck [e-mail]
a écrit :

Currently, creating a forest plot with plot_forest uses
as the scheme for labels on the y-axis. This creates a
slew of repeated variable names in the labels, which I would guess is
almost always undesirable (particularly when you have nice element labels
as coordinates in the dataset):

[image: Screen Shot 2021-01-27 at 1 02 58 PM]
https://user-images.githubusercontent.com/81476/106040982-d6389b80-60a0-11eb-9f8a-be4a4a579062.png

There should be excluded by default, and turned on with a
include_var_names=True (or similar) argument.

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[fonnesbeck]

Yeah, that's what I meant by the second comment. If there is only one (multivariate) variable it should probably only use the coord names, except for the first element.

[fonnesbeck]

How about something like this (using the mpl_plot_forest_ridge example):

here is the current behavior:

Got a PR ready to go if this works for everyone.

[ColCarroll]

I like it!

On Wed, Jan 27, 2021, 11:29 PM Chris Fonnesbeck [e-mail]
wrote:

How about something like this (using the mpl_plot_forest_ridge example):

[image: Screen Shot 2021-01-27 at 10 23 03 PM]
https://user-images.githubusercontent.com/81476/106089777-4ae5f700-60ee-11eb-8a84-5a343ff99827.png

here is the current behavior:

[image: Figure_1]
https://user-images.githubusercontent.com/81476/106090062-de1f2c80-60ee-11eb-80e8-20962e5db01a.png

Got a PR ready to go if this works for everyone.

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[fonnesbeck]

... and in Bokeh