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How Do You Keep Only the Top Two Most Frequent Values as It Is and Replace Everything Else as ‘other’ in a Series?
>> #Input
>>import pandas as pd
>>np.random.RandomState(100)
>>ser = pd.Series(np.random.randint(1, 5, [12]))
>> #Solution
>>print("Top 2 Freq:", ser.value_counts())
>>ser[~ser.isin(ser.value_counts().index[:2])] = 'Other’
>>ser