在seaborn tsplot中将图例移到图外 [英] Move legend outside figure in seaborn tsplot

问题描述

我想使用 seaborn.tsplot 创建一个时间序列图，例如 ，看起来 seaborn.tsplot 目前不允许直接控制图例位置:

 ，如果图例:ax.legend(loc=0, title=legend_name)

有matplotlib解决方法吗?我正在使用seaborn 0.6-dev.

解决方案

确实，seaborn 到目前为止还不能很好地处理图例.您可以根据

I would like to create a time series plot using seaborn.tsplot like in this example from tsplot documentation, but with the legend moved to the right, outside the figure.

Based on the lines 339-340 in seaborn's timeseries.py, it looks like seaborn.tsplot currently doesn't allow direct control of legend placement:

    if legend:
        ax.legend(loc=0, title=legend_name)

Is there a matplotlib workaround? I'm using seaborn 0.6-dev.

解决方案

Indeed, seaborn doesn't handle legends well so far. You can use plt.legend() to control legend properties directly through matplotlib, in accordance with Matplotlib Legend Guide.

Note that in Seaborn 0.10.0 tsplot was removed, and you may replicate (with different values for the estimation if you please) the plots with lineplot instead of tsplot.

Snippet

import matplotlib.pyplot as plt
import seaborn as sns

sns.set(style="darkgrid")

# Load the long-form example gammas dataset
gammas = sns.load_dataset("gammas")

# Plot the response with standard error
sns.lineplot(data=gammas, x="timepoint", y="BOLD signal", hue="ROI")

# Put the legend out of the figure
plt.legend(bbox_to_anchor=(1.05, 1), loc=2, borderaxespad=0.)

Output

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