概述
import pylab as P mu,sigma = 200,25 x0 = mu + sigma*P.randn(10000) n,bins,patches = P.hist( x0,20,histtype='stepfilled',facecolor='lightblue' )
但是,当我引入额外的直方图时,
import pylab as P mu,25 x0 = mu + sigma*P.randn(10000) x1 = mu + sigma*P.randn(7000) x2 = mu + sigma*P.randn(3000) n,patches = P.hist( [x0,x1,x2],stacked=True,facecolor=['lightblue','lightgreen','crimson'] )
它会引发以下错误:
ValueError: to_rgba: Invalid rgba arg "['lightblue','crimson']" Could not convert string to float: lightblue
使用color = [‘lightblue’,’lightgreen’,’crimson’]选项确实有效,但我希望能够直接控制填充和线条颜色,同时能够使用命名的Matplotlib颜色.我使用的是Matplotlib 1.2.1版.
for patch in patches[0]: patch.set_facecolor('lightblue') for patch in patches[1]: patch.set_facecolor('lightgreen') for patch in patches[2]: patch.set_facecolor('crimson')
总结
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