python-3.x - seaborn中分组箱线图的个别颜色

Question

我想调整此箱线图的配色方案，使左侧的组为深蓝色和浅蓝色，右侧为深红色和浅红色。我已经制作了我想要的颜色，my_colours但我仍然不知道该怎么做。这是数据的代码：

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

a1 = list(np.random.normal(.70, .20, 20))
a2 = list(np.random.normal(.5, .15, 20))
b1 = list(np.random.normal(.78, .20, 20))
b2 = list(np.random.normal(.4, .25, 20))



levsA = ['a' for i in range(40)]
levsB = ['b' for i in range(40)]

itemsa = [1 for i in range(20)] + [2 for i in range(20)]
itemsb = [1 for i in range(20)] + [2 for i in range(20)]



df = pd.DataFrame({'cs':a1 + a2 + b1+ b2,
                   'levels':levsA + levsB,
                   'type':itemsa + itemsb})


my_colours = ((0.1216, 0.4667, 0.7059),
              (0.8392, 0.1529, 0.1569),
              (0.6824, 0.7804, 0.9098),
              (1, 0.5961, 0.5882))
sns.set_palette(my_colours)


sns.boxplot(x='type', y='cs', hue='levels', data=df)

我希望它们按以下顺序：

标签： python-3.xseaborn

Answer 1

盒子是PathPatches。您可以遍历它们并设置它们的颜色。不过，需要注意它们在轴中出现的顺序。

import matplotlib.patches
boxes = ax.findobj(matplotlib.patches.PathPatch)
for color, box in zip(my_colours[::2]+my_colours[1::2], boxes):
    box.set_facecolor(color)