Computer scienceData scienceInstrumentsPandasData analysis with pandas

Summarizing categorical columns

Unique counts

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Imagine you have a DataFrame df. A column "a" from the DataFrame contains 3 categorical values, for example, "Monday", "Friday", "Tuesday". How could you count all records for every unique value?

Select one option from the list

df.a.value_counts()

df.a.count_values()

df.a.unique()

df.a.nunique()

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