如何在 Matplotlib 中设置图形标题和轴标签字体大小? [英] How do I set the figure title and axes labels font size in Matplotlib?

问题描述

我正在像这样在 Matplotlib 中创建一个图形:

I am creating a figure in Matplotlib like this:

from matplotlib import pyplot as plt

fig = plt.figure()
plt.plot(data)
fig.suptitle('test title')
plt.xlabel('xlabel')
plt.ylabel('ylabel')
fig.savefig('test.jpg')

我想为图形标题和轴标签指定字体大小.我需要所有三个字体大小不同，因此设置全局字体大小 (mpl.rcParams['font.size']=x) 不是我想要的.如何分别设置图形标题和轴标签的字体大小?

I want to specify font sizes for the figure title and the axis labels. I need all three to be different font sizes, so setting a global font size (mpl.rcParams['font.size']=x) is not what I want. How do I set font sizes for the figure title and the axis labels individually?

推荐答案

处理文本的函数，如 label、title 等，接受与 matplotlib.text.Text.对于字体大小，您可以使用 size/fontsize:

Functions dealing with text like label, title, etc. accept parameters same as matplotlib.text.Text. For the font size you can use size/fontsize:

from matplotlib import pyplot as plt    

fig = plt.figure()
plt.plot(data)
fig.suptitle('test title', fontsize=20)
plt.xlabel('xlabel', fontsize=18)
plt.ylabel('ylabel', fontsize=16)
fig.savefig('test.jpg')

对于全局设置 title 和 label 大小，mpl.rcParams 包含 axes.titlesize 和 axes.labelsize.(来自页面):

For globally setting title and label sizes, mpl.rcParams contains axes.titlesize and axes.labelsize. (From the page):

axes.titlesize      : large   # fontsize of the axes title
axes.labelsize      : medium  # fontsize of the x any y labels

(据我所知，没有办法分别设置 x 和 y 标签大小.)

(As far as I can see, there is no way to set x and y label sizes separately.)

而且我看到 axes.titlesize 不会影响 suptitle.我想，你需要手动设置.

And I see that axes.titlesize does not affect suptitle. I guess, you need to set that manually.

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