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Creating a Dataset for Pandas Groupby
Example
import pandas as pd
import numpy as np
df = pd.DataFrame( {
"Employee" : ["Susan", "Bart", "Emily", "Charles", "David", "Charles", "Julia", "Bart"] ,
"City" : ["London", "London", "Philadelphia", "London", "London", "Philadelphia", "London", "Philadelphia"] ,
"Age" : [20, 40, 18, 24, 37, 40, 44, 20 ],
"Hours" : [24, 40, 50, 36, 54, 44, 41, 35]} )
df