在python中为matplotlib图动态添加图例 [英] Dynamically add legends to matplotlib plots in python
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问题描述
我在 python 中有一组图,想分别为每个图添加图例.我正在 for 循环中生成图并希望动态添加图例.
I have a set of plots in python and want to add legends to each of them separately. I am generating the plots in a for loop and want to add the legends dynamically.
我只得到显示的最后一个图例.我希望显示所有 9 个
Im getting only the last legend shown. I want all 9 off them to be displayed
for q in range(1,10):
matplotlib.pylab.plot(s_A_approx, label = q)
matplotlib.pylab.legend(loc = 'upper left')
matplotlib.pylab.show()
推荐答案
我无法重现您的问题.通过对脚本进行一些调整,您可以期待的对我有用.
I can't reproduce your problem. With a few adjustments to your script, what you're expecting is working for me.
import matplotlib.pylab
import numpy as np
for q in range(1,10):
# create a random, 100 length array
s_A_approx = np.random.randint(0, 100, 100)
# note I had to make q a string to avoid an AttributeError when
# initializing the legend
matplotlib.pylab.plot(s_A_approx, marker='.', linestyle='None', label=str(q))
matplotlib.pylab.legend(loc='upper left')
matplotlib.pylab.show()
如果有帮助,这是我的 matplotlib 版本:
If it helps, here's my matplotlib version:
>>> import matplotlib
>>> matplotlib.__version__
'1.0.1'
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