Python-如何将图例排除在情节之外

Python-如何将图例排除在情节之外,第1张

Python-如何将图例排除在情节之外

有很多方法可以做你想要的。要添加

@inalis
@Navi
所说的内容,可以使用
bbox_to_anchor
关键字参数将图例部分地放置在轴外and/or 减小字体大小

在考虑减小字体大小(这会使阅读起来非常困难)之前,请尝试将图例放在不同的位置:

因此,让我们从一个通用示例开始:

import matplotlib.pyplot as pltimport numpy as npx = np.arange(10)fig = plt.figure()ax = plt.subplot(111)for i in xrange(5):    ax.plot(x, i * x, label='$y = %ix$' % i)ax.legend()plt.show()

如果我们做同样的事情,但是使用

bbox_to_anchor
关键字参数,我们可以将图例稍微移出轴边界:

import matplotlib.pyplot as pltimport numpy as npx = np.arange(10)fig = plt.figure()ax = plt.subplot(111)for i in xrange(5):    ax.plot(x, i * x, label='$y = %ix$' % i)ax.legend(bbox_to_anchor=(1.1, 1.05))plt.show()

同样,你可以使图例更加水平和/或将其放在图的顶部(我也打开了圆角和简单的阴影):

import matplotlib.pyplot as pltimport numpy as npx = np.arange(10)fig = plt.figure()ax = plt.subplot(111)for i in xrange(5):    line, = ax.plot(x, i * x, label='$y = %ix$'%i)ax.legend(loc='upper center', bbox_to_anchor=(0.5, 1.05),          ncol=3, fancybox=True, shadow=True)plt.show()

另外,你可以缩小当前图的宽度,并将图例完全放在图的轴外:

import matplotlib.pyplot as pltimport numpy as npx = np.arange(10)fig = plt.figure()ax = plt.subplot(111)for i in xrange(5):    ax.plot(x, i * x, label='$y = %ix$'%i)# Shrink current axis by 20%box = ax.get_position()ax.set_position([box.x0, box.y0, box.width * 0.8, box.height])# Put a legend to the right of the current axisax.legend(loc='center left', bbox_to_anchor=(1, 0.5))plt.show()

同样,你可以垂直缩小图,并在底部放置水平图例:

import matplotlib.pyplot as pltimport numpy as npx = np.arange(10)fig = plt.figure()ax = plt.subplot(111)for i in xrange(5):    line, = ax.plot(x, i * x, label='$y = %ix$'%i)# Shrink current axis's height by 10% on the bottombox = ax.get_position()ax.set_position([box.x0, box.y0 + box.height * 0.1,      box.width, box.height * 0.9])# Put a legend below current axisax.legend(loc='upper center', bbox_to_anchor=(0.5, -0.05),          fancybox=True, shadow=True, ncol=5)plt.show()



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