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matplotlib画双轴子图无法显示x轴怎么办

发布时间:2020-07-30 11:54:50 来源:亿速云 阅读:290 作者:小猪 栏目:开发技术

这篇文章主要为大家展示了matplotlib画双轴子图无法显示x轴怎么办,内容简而易懂,希望大家可以学习一下,学习完之后肯定会有收获的,下面让小编带大家一起来看看吧。

主要问题

1.介绍

如题,画双轴子图不能显示 x-轴坐标轴标签,似乎 “双轴”与“子图”存在冲突有关,当前版本是 anaconda 3.7.4。比较奇葩的是 我家里的电脑,3.7.3 却没这个问题。但我把公司电脑换成 3.7.3 问题依旧,崩溃。

import pandas as pd
import matplotlib.pyplot as plt

a = pd.date_range('2020-07-01','2020-07-20')
b = [2,3,4,5,7,9,20,20,11,13,1,2,3,9,23,2,6,7,7,7]
c = [0.20,0.1,0.13,0.1,0.2,0.3,0.9,0.23,0.2,0.6,0.7,0.7,0.7,0.2,0.3,0.4,0.5,0.7,0.9,0.2]

data = pd.DataFrame({'a':a,'b':b,'c':c})

data = data.groupby(['a'])['b','c'].sum()

nrow = 2
ncol = 1

fig = plt.figure(figsize=(ncol*10,nrow*4))

ax_1 = plt.subplot2grid((nrow, ncol), (0, 0), colspan=1, rowspan=1,facecolor = 'black')
ax_2 = plt.subplot2grid((nrow, ncol), (1, 0), colspan=1, rowspan=1,facecolor = 'black')

data['b'].plot(ax = ax_1,color = 'r')
data['c'].plot(ax = ax_1.twinx(),color = 'y')

matplotlib画双轴子图无法显示x轴怎么办

2.只画双轴,正常显示

import pandas as pd
import matplotlib.pyplot as plt

a = pd.date_range('2020-07-01','2020-07-20')
b = [2,3,4,5,7,9,20,20,11,13,1,2,3,9,23,2,6,7,7,7]
c = [0.20,0.1,0.13,0.1,0.2,0.3,0.9,0.23,0.2,0.6,0.7,0.7,0.7,0.2,0.3,0.4,0.5,0.7,0.9,0.2]

data = pd.DataFrame({'a':a,'b':b,'c':c})

data = data.groupby(['a'])['b','c'].sum()

nrow = 1
ncol = 1

fig = plt.figure(figsize=(ncol*10,nrow*4))

ax_1 = plt.subplot2grid((nrow, ncol), (0, 0), colspan=1, rowspan=1,facecolor = 'black')
# ax_2 = plt.subplot2grid((nrow, ncol), (1, 0), colspan=1, rowspan=1,facecolor = 'black')

data['b'].plot(ax = ax_1,color = 'r')
data['c'].plot(ax = ax_1.twinx(),color = 'y')

matplotlib画双轴子图无法显示x轴怎么办

3.只画子图,也能正常显示

import pandas as pd
import matplotlib.pyplot as plt

a = pd.date_range('2020-07-01','2020-07-20')
b = [2,3,4,5,7,9,20,20,11,13,1,2,3,9,23,2,6,7,7,7]
c = [0.20,0.1,0.13,0.1,0.2,0.3,0.9,0.23,0.2,0.6,0.7,0.7,0.7,0.2,0.3,0.4,0.5,0.7,0.9,0.2]

data = pd.DataFrame({'a':a,'b':b,'c':c})

data = data.groupby(['a'])['b','c'].sum()

nrow = 2
ncol = 1

fig = plt.figure(figsize=(ncol*10,nrow*4))

ax_1 = plt.subplot2grid((nrow, ncol), (0, 0), colspan=1, rowspan=1,facecolor = 'black')
ax_2 = plt.subplot2grid((nrow, ncol), (1, 0), colspan=1, rowspan=1,facecolor = 'black')

data['b'].plot(ax = ax_1,color = 'r')
data['c'].plot(ax = ax_2,color = 'y')

matplotlib画双轴子图无法显示x轴怎么办

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