如何格式化Seaface FacetGrid中的y轴或x轴标签？

Question

我想在一个深奥的FacetGrid图中设置y轴标签的格式，并带有小数位数和/或添加一些文本。

import seaborn as sns
import matplotlib.pyplot as plt
sns.set(style="ticks")

exercise = sns.load_dataset("exercise")

g = sns.catplot(x="time", y="pulse", hue="kind", col="diet", data=exercise)
#g.xaxis.set_major_formatter(ticker.FuncFormatter(lambda x, pos: '{:,.2f}'.format(x) + 'K'))
#g.set(xticks=['a','try',0.5])
g.yaxis.set_major_formatter(ticker.FuncFormatter(lambda x, pos: '{:,.2f}'.format(x) + 'K'))
plt.show()

灵感来自How to format seaborn/matplotlib axis tick labels from number to thousands or Millions? (125,436 to 125.4K)

ax.xaxis.set_major_formatter(ticker.FuncFormatter(lambda x, pos: '{:,.2f}'.format(x) + 'K'))

它导致以下错误。

AttributeError: 'FacetGrid' object has no attribute 'xaxis'

Answer 1

• xaxis和yaxis是axes类型的图seaborn.axisgrid.FacetGrid的属性。
  • 在链接的答案中，类型为matplotlib.axes._subplots.AxesSubplot
p表达式中的
• lambda是刻度标签号。
• seaborn: Building structured multi-plot grids
• matplotlib: Creating multiple subplots

import pandas as pd
import seaborn as sns
import matplotlib.pyplot as plt
import matplotlib.ticker as tkr

sns.set(style="ticks")

# load data
exercise = sns.load_dataset("exercise")

# plot data
g = sns.catplot(x="time", y="pulse", hue="kind", col="diet", data=exercise)

# format the labels with f-strings
for ax in g.axes.flat:
    ax.yaxis.set_major_formatter(tkr.FuncFormatter(lambda y, p: f'{y:.2f}: Oh baby, baby'))
    ax.xaxis.set_major_formatter(tkr.FuncFormatter(lambda x, p: f'{x}: Is that your best'))