不同的 cubehelix 调色板

使用的 seaborn 组件： set_theme()， cubehelix_palette()， kdeplot()

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

sns.set_theme(style="white")
rs = np.random.RandomState(50)

# Set up the matplotlib figure
f, axes = plt.subplots(3, 3, figsize=(9, 9), sharex=True, sharey=True)

# Rotate the starting point around the cubehelix hue circle
for ax, s in zip(axes.flat, np.linspace(0, 3, 10)):

    # Create a cubehelix colormap to use with kdeplot
    cmap = sns.cubehelix_palette(start=s, light=1, as_cmap=True)

    # Generate and plot a random bivariate dataset
    x, y = rs.normal(size=(2, 50))
    sns.kdeplot(
        x=x, y=y,
        cmap=cmap, fill=True,
        clip=(-5, 5), cut=10,
        thresh=0, levels=15,
        ax=ax,
    )
    ax.set_axis_off()

ax.set(xlim=(-3.5, 3.5), ylim=(-3.5, 3.5))
f.subplots_adjust(0, 0, 1, 1, .08, .08)