python count variable and put the count in a column of data frame
df['freq'] = df.groupby('myvar')['myvar'].transform('count')python count variable and put the count in a column of data frame
df['freq'] = df.groupby('myvar')['myvar'].transform('count')pandas count
>>> df.set_index(["Person", "Single"]).count(level="Person")
Age
Person
John 2
Lewis 1
Myla 1Copyright © 2021 Codeinu
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