使用 pandas 的箱线图

Question

正在尝试为 pandas 数据框绘制箱线图，但 x 轴列名称似乎不清晰。

import matplotlib.pyplot as plt
pd.set_option('display.mpl_style', 'default')
fig, ax1 = plt.subplots()
%matplotlib inline
df.boxplot(column = ['avg_dist','avg_rating_by_driver','avg_rating_of_driver','avg_surge','surge_pct','trips_in_first_30_days','weekday_pct'])

下面是输出

如何解决此问题以使 x 轴列显示清晰

Answer 1

我想你需要参数 rot:

cols = ['avg_dist','avg_rating_by_driver','avg_rating_of_driver',
        'avg_surge','surge_pct','trips_in_first_30_days','weekday_pct']

df.boxplot(column=cols, rot=90)

样本：

np.random.seed(100)
cols = ['avg_dist','avg_rating_by_driver','avg_rating_of_driver',
        'avg_surge','surge_pct','trips_in_first_30_days','weekday_pct']
df = pd.DataFrame(np.random.rand(10, 7), columns=cols)
df.boxplot(column=cols, rot=90)

Answer 2

另一种选择是将方框的方向设为水平。

np.random.seed(100)
cols = ['avg_dist','avg_rating_by_driver','avg_rating_of_driver',
        'avg_surge','surge_pct','trips_in_first_30_days','weekday_pct']
df = pd.DataFrame(np.random.rand(10, 7), columns=cols)
df.boxplot(column=cols, vert=False)

使用 pandas 的箱线图

Box plot using pandas

python

matplotlib

boxplot

pandas