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Drawing frequency histogram of Pandas DataFrame column
schedule Aug 12, 2023
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Tags Python●Pandas
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Consider the following DataFrame:
import pandas as pd
'class':['A','A','B','A','B','C'], 'name':['alex','bob','cathy','doge','eric','fred']})df
class name0 A alex1 A bob2 B icathy3 A doge4 B eric5 C fred
Using matplotlib
To draw a frequency histogram of the class column:
import matplotlib.pyplot as plt
plt.hist(df['class'])plt.ylabel('Frequency count')plt.xlabel('Data');plt.title('My histogram')plt.show()
This gives you the following plot:
Using seaborn
The other alternative is to use the seaborn library:
import seaborn as snssns.countplot(x=df['class'])
We get the following:
Published by Isshin Inada
Edited by 0 others
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