How do I change the hex size in a seaborn jointplot? (the hexes themselves, not the bins)

Question

Using a hexagonal jointplot in Seaborn to produce some "heat maps" showing where on the court basketball players take the most shots. The data comes from a pandas dataframe, where LocX represents the player's horizontal position on the court (-250 and 250 are the sidelines, 0 is in line with the basket), and LocY is the length-wise distance from the basket. I use the same code to produce maps for multiple players, but the size of the hexagons varies wildly between players (even when two players have a similar number of total shots). Here is one that comes out just as I'd like Good Plot,

but here is one that doesn't work at all Bad Plot.

Here is my code generating it:

cmap=plt.cm.gist_heat_r
joint_shot_chart = sns.jointplot(shot_df.LocX, shot_df.LocY, stat_func=None, kind='hex', space=0, color=cmap(.2), cmap=cmap)

Is there a kwarg that I can use to change the size of the hexagons?

Francesco

try use "gridsize" as a parameter? there is a discussion about it. github.com/mwaskom/seaborn/pull/186 – Incorruptible

That worked! Really weird, I tried that earlier with no luck. Wonder what I was doing wrong. Thanks a ton! – Francesco

nice, I'm glad that it works. – Incorruptible

Did u add the bg image externally or is there any function in seaborn? – Cosecant

Answer 1

You can parse the gridsize argument. A higher value results in smaller hexbins.

import numpy as np, pandas as pd; np.random.seed(0)
import seaborn as sns; sns.set(style="white", color_codes=True)

tips = sns.load_dataset("tips")
joint_kws=dict(gridsize=5)
g = sns.jointplot(x="total_bill", y="tip", data=tips,kind="hex", joint_kws= joint_kws)

Tautomer

Doesn't work for me: AttributeError: 'QuadMesh' object has no property 'gridsize' – Spearhead

Answer 2

import numpy as np, pandas as pd; np.random.seed(0)
import seaborn as sns; sns.set(style="white", color_codes=True)

tips = sns.load_dataset("tips")
g = sns.jointplot(x="total_bill", y="tip", data=tips,kind="hex",gridsize=20)

Aeroballistics

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