如何将axhline发送到Matplotlib的barplot后面

Question

我有以下代码。它使用Matplotlib wrapper in Pandas：

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    context : this,
    data: {various_parameters},
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这就是这个数字：

如上所述。如何将import pandas as pd import io import matplotlib import matplotlib.pyplot as plt test=u"""Cell,Value Bcells,0.056304 DendriticCells,0.3155388 Macrophages,0.131430 """ tableau10=[ "#17BECF", "#BCBD22", "#7F7F7F", ] toplot_df = pd.read_csv(io.StringIO(test)) toplot_df.set_index('Cell',inplace=True) xlabels = toplot_df.index.values barplot = toplot_df.plot(kind="bar", figsize=(17,17), \ color = tableau10, \ width=0.7,\ fontsize = 30,\ legend=False, ylim = (0,0.5), subplots=False) ax = plt.gca() ax.set_xticklabels(xlabels, rotation=30, ha='right') # How to to make this to the back plt.axhline(y=0.1, linewidth=1, color='r',zorder=1) plt.xlabel("") plt.ylabel("Score", fontsize=30, fontweight="bold") 设为后台？ 我试过了axhline但却没有工作。

Answer 1

您只需要使zorder的{​​{1}}高于barplot的{​​{1}}。在您的示例中，我只需将zorder选项添加到axhline来电。

zorder=2