Python 如何使用 seaborn FacetGrid 更改字体大小？
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How can I change the font size using seaborn FacetGrid?
提问by james pardon
I have plotted my data with factorplotin seabornand get facetgridobject, but still cannot understand how the following attributes could be set in such a plot:
我已经用factorplotinseaborn和 getfacetgrid对象绘制了我的数据，但仍然无法理解如何在这样的图中设置以下属性：
- Legend size: when I plot lots of variables, I get very small legends, with small fonts.
- Font sizes of y and x labels (a similar problem as above)
- 图例大小：当我绘制大量变量时，我会得到非常小的图例，带有小字体。
- y 和 x 标签的字体大小（与上面类似的问题）
采纳答案by Paul H
You can scale up the fonts in your call to sns.set().
您可以在调用中放大字体sns.set()。
import numpy as np
import matplotlib.pyplot as plt
import seaborn as sns
x = np.random.normal(size=37)
y = np.random.lognormal(size=37)
# defaults
sns.set()
fig, ax = plt.subplots()
ax.plot(x, y, marker='s', linestyle='none', label='small')
ax.legend(loc='upper left', bbox_to_anchor=(0, 1.1))
sns.set(font_scale=5) # crazy big
fig, ax = plt.subplots()
ax.plot(x, y, marker='s', linestyle='none', label='big')
ax.legend(loc='upper left', bbox_to_anchor=(0, 1.3))
回答by achennu
The FacetGridplot does produce pretty small labels. While @paul-h has described the use of sns.setas a way to the change the font scaling, it may not be the optimal solution since it will change the font_scalesetting for all plots.
该FacetGrid情节确实产生了非常小的标签。虽然@paul-h 已将使用 描述sns.set为更改字体缩放的一种方式，但它可能不是最佳解决方案，因为它会更改font_scale所有绘图的设置。
You could use the seaborn.plotting_contextto change the settings for just the current plot:
您可以使用seaborn.plotting_context来更改当前绘图的设置：
with sns.plotting_context(font_scale=1.5):
sns.factorplot(x, y ...)
回答by Sergio Cobo
I've made small modifications to @paul-H code, such that you can set the font size for the x/y axes and legend independently. Hope it helps:
我对@paul-H 代码做了一些小的修改，这样你就可以独立设置 x/y 轴和图例的字体大小。希望能帮助到你：
import numpy as np
import matplotlib.pyplot as plt
import seaborn as sns
x = np.random.normal(size=37)
y = np.random.lognormal(size=37)
# defaults
sns.set()
fig, ax = plt.subplots()
ax.plot(x, y, marker='s', linestyle='none', label='small')
ax.legend(loc='upper left', fontsize=20,bbox_to_anchor=(0, 1.1))
ax.set_xlabel('X_axi',fontsize=20);
ax.set_ylabel('Y_axis',fontsize=20);
plt.show()
This is the output:
这是输出：
回答by Hielke Walinga
For the legend, you can use this
对于图例，您可以使用此
plt.setp(g._legend.get_title(), fontsize=20)
Where g is your facetgrid object returned after you call the function making it.
其中 g 是调用创建它的函数后返回的 facetgrid 对象。
