Barplot/line plot on same plot, but different axis and line plot in front of barplot

Question

I\'m using pandas to plot some data.

If I plot this:

import pandas as pd
import matplotlib.pyplot as plt

df          


        

Answer 1

you could put line on primary axis.

import pandas as pd
import matplotlib.pyplot as plt

df = pd.DataFrame({'a': [100, 200, 150, 175],
                   'b': [430, 30, 20, 10]})
fig, ax1 = plt.subplots(figsize=(15, 10))
df['b'].plot(kind='bar', color='y')
df['a'].plot(kind='line', marker='d', secondary_y=True)

Or, create two axes ax1 and ax2 with twinx().

import pandas as pd
import matplotlib.pyplot as plt

df = pd.DataFrame({'a': [100, 200, 150, 175],
                   'b': [430, 30, 20, 10]})
fig, ax1 = plt.subplots(figsize=(15, 10))
ax2 = ax1.twinx()
df['b'].plot(kind='bar', color='y', ax=ax1)
df['a'].plot(kind='line', marker='d', ax=ax2)
ax1.yaxis.tick_right()
ax2.yaxis.tick_left()