Input −
Assume, we have a DataFrame and group the records based on the designation is −
Designation architect 1 programmer 2 scientist 2
Solution
To solve this, we will follow the below approaches.
Define a DataFrame
Apply groupby method for Designation column and calculate the count as defined below,
df.groupby(['Designation']).count()
Example
Let us see the following implementation to get a better understanding.
import pandas as pd data = { 'Id':[1,2,3,4,5], 'Designation': ['architect','scientist','programmer','scientist','programmer']} df = pd.DataFrame(data) print("DataFrame is\n",df) print("groupby based on designation:") print(df.groupby(['Designation']).count())
Output
Designation architect 1 programmer 2 scientist 2