在使用matplotlib畫圖的時候將常會出現坐標軸的標簽太長而出現重疊的現象，本文主要通過自身測過好用的解決辦法進行展示，希望也能幫到大家，原圖出現重疊現象例如圖1：
代碼為：
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data1=[[0.3765,0.3765,0.3765,0.3765,0.3765],[0.3765,0.3765,0.3765,0.3765,0.3765],[0.3765,0.3765,0.3765,0.3765,0.3765],[0.3765,0.3765,0.3765,0.3765,0.3765]]data2=[[0.2985,0.2268,0.2985,0.2996,0.2985],[0.2022,0.3203,0.3141,0.2926,0.2681],[0.2985,0.2668,0.2786,0.2985,0.2985],[0.2985,0.2985,0.2984,0.2978,0.2966]]data3=[[0.7789,0.7698,0.6999,0.7789,0.7789],[0.7788,0.7758,0.7768,0.7698,0.8023],[0.7789,0.7781,0.7789,0.7789,0.7789],[0.7789,0.7782,0.7752,0.7852,0.7654]]data4=[[0.6688,0.6688,0.6688,0.6981,0.6618],[0.6688,0.5644,0.5769,0.5858,0.5882],[0.6688,0.6688,0.6688,0.6688,0.6646],[0.6688,0.6646,0.6646,0.6688,0.6746]] #date1-date4均為我用到的數據，數據的形式等可自行更換。##將4個圖畫在一張圖上fig=plt.figure(figsize=(13,11))ax1=fig.add_subplot(2, 2, 1)##左右布局ax2=fig.add_subplot(2, 2, 2)ax3=fig.add_subplot(2, 2, 3)##上下布局ax4=fig.add_subplot(2, 2, 4)plt.sca(ax1) labels=['Today is Sunday','Today is Monday','Today is Tuesday','Today is Wednesday']#標簽plt.boxplot(data1,labels=labels,boxprops={'linewidth':'2'},capprops={'linewidth':'2'},whiskerprops={'linewidth':'2'},medianprops={'linewidth':'2'}) #linewidth設置線條的粗細；boxprops、capprops、whiskerprops、medianprops表示盒圖中各個線條的類型plt.ylabel('Today',fontsize=16)plt.xlabel('(a)',fontsize=16)plt.sca(ax2) labels=['Today is Sunday','Today is Monday','Today is Tuesday','Today is Wednesday']plt.boxplot(data2,labels=labels,boxprops={'linewidth':'2'},capprops={'linewidth':'2'},whiskerprops={'linewidth':'2'},medianprops={'linewidth':'2'})plt.xlabel('(b)',fontsize=16)plt.sca(ax3) labels=['Today is Sunday','Today is Monday','Today is Tuesday','Today is Wednesday']plt.boxplot(data3,labels=labels,boxprops={'linewidth':'2'},capprops={'linewidth':'2'},whiskerprops={'linewidth':'2'},medianprops={'linewidth':'2'})plt.ylabel('Today',fontsize=16)plt.xlabel('(c)',fontsize=16)plt.sca(ax4) labels=['Today is Sunday','Today is Monday','Today is Tuesday','Today is Wednesday']plt.boxplot(data4,labels=labels,boxprops={'linewidth':'2'},capprops={'linewidth':'2'},whiskerprops={'linewidth':'2'},medianprops={'linewidth':'2'})plt.xlabel('(d)',fontsize=16)plt.show() |
1、解決辦法1： 將軸標簽分兩行顯示，如圖2：
只需在原代碼中每個子圖畫圖中加上代碼：
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ax1.set_xticklabels(['Today is Sunday','\n'+'Today is Monday','Today is Tuesday','\n'+'Today is Wednesday'],fontsize=16) |
'\n'+則表示換行顯示的意思，想要哪個標簽換行顯示，則在標簽前面加上此符號，也可以換多行，一個\n表示一行，例如'\n\n'+則表示換兩行顯示。fontsize是設置顯示標簽的字體大小。
2、解決辦法2：軸標簽傾斜顯示
同樣只需在原代碼的基礎上加上一句代碼：
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ax1.set_xticklabels(['Today is Sunday','Today is Monday','Today is Tuesday','Today is Wednesday'],fontsize=16,rotation=10) |
rotation表示傾斜的角度，10即為傾斜10度，可任意設置，也可結合上面換行顯示一同使用。
3、解決辦法3：利用matplotlib里面的自動調整語句
只需在原代碼的畫圖部分的最后加上matplotlib自動調整的語句,圖則會自動調整標簽大小：
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plt.tight_layout() |
以上這篇python matplotlib畫盒圖、子圖解決坐標軸標簽重疊的問題就是小編分享給大家的全部內容了，希望能給大家一個參考，也希望大家多多支持服務器之家。
原文鏈接：https://blog.csdn.net/baidu_37995814/article/details/98727766
