pandas -boxplot中位数颜色设置问题 [英] pandas - boxplot median color settings issues

问题描述

我正在运行Pandas 0.16.2和Matplotlib 1.4.3.我遇到的问题是将以下代码生成的箱线图的中位数着色:

I'm running Pandas 0.16.2 and Matplotlib 1.4.3. I have this issue coloring the median of the boxplot generated by the following code:

df = pd.DataFrame(np.random.rand(10, 5), columns=['A', 'B', 'C', 'D', 'E'])

fig, ax = plt.subplots()

medianprops = dict(linestyle='-', linewidth=2, color='blue')

bp = df.boxplot(medianprops=medianprops)

plt.show()

返回:

似乎未读取color设置.仅更改线型和线宽的设置，绘图即可正确反应.

It appears that the color setting is not read. Changing only the settings of linestyle and linewidth the plot reacts correctly.

medianprops = dict(linestyle='-.', linewidth=5, color='blue')

任何人都可以复制它吗?

Anyone can reproduce it?

推荐答案

实际上，以下解决方法效果很好，可以从boxplot命令返回dict:

Actually the following workaround works well, returning a dict from the boxplot command:

df = pd.DataFrame(np.random.rand(10, 5), columns=['A', 'B', 'C', 'D', 'E'])

fig, ax = plt.subplots()

bp = df.boxplot(return_type='dict')

，然后使用以下方法将颜色和线宽直接分配给中位数:

and then assign directly colors and linewidth to the medians with:

[[item.set_color('r') for item in bp[key]['medians']] for key in bp.keys()]
[[item.set_linewidth(0.8) for item in bp[key]['medians']] for key in bp.keys()]

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