问在seaborn.despine()上动态设置轴偏移

EN

import numpy as np
import pandas as pd
import seaborn as sns
import matplotlib.pyplot as plt

# Define and use a simple function to label the plot in axes coordinates
def label(x, color, label):
    ax = plt.gca()
    ax.text(0, .2, label, fontweight="bold", color=color,
            ha="left", va="center", transform=ax.transAxes)

# Create sample data
rs = np.random.RandomState(1979)
x = rs.randn(500)
g = np.tile(list("ABCDEFGHIJ"), 50)
df = pd.DataFrame(dict(x=x, g=g))

# Plot
sns.set(style="white", rc={"axes.facecolor": (0, 0, 0, 0)})

pal = sns.color_palette("hls")
# Initialize the FacetGrid object
g = sns.FacetGrid(df, row="g", hue="g", aspect=20, height=0.7, palette=pal)

# Draw the densities in a few steps
g.map(sns.kdeplot, "x", clip_on=False, shade=True, alpha=0.7, lw=2, bw='scott')
g.map(sns.kdeplot, "x", clip_on=False, color="k", lw=1, bw='scott')

g.map(label, "x")

# Set the subplots to overlap
g.fig.subplots_adjust(hspace=-.25)


# calculate offset for left axis
ax = g.axes[0]
ax_size = abs(ax[0].get_xlim()[0]) + ax[0].get_xlim()[1]
fig = g.fig
size = fig.get_size_inches()*fig.dpi
fig_size = size[0]
off = fig_size * ax[0].get_xlim()[0] / ax_size

# Remove axes details that don't play well with overlap
g.set_titles("")
g.set(yticks=[])
g.despine(bottom=False, left=False, offset={'left':off}); # set offset