4.9. Histogram

• Great way to learn about numerical data

• Used to visualize distribution of numeric variable

import pandas as pd
import matplotlib.pyplot as plt

data = {'Month':['Jan','Feb','March','April'],
        'Sales': [99, 98, 95, 90],
        'Profit': [10,20,30,40]
       }
df=pd.DataFrame(data,columns=['Sales','Profit'],index=data['Month'])
df

	Sales	Profit
Jan	99	10
Feb	98	20
March	95	30
April	90	40

fig,ax=plt.subplots()
ax.hist(df['Sales']) ;