Computer scienceData scienceInstrumentsPandasData preprocessing with pandas

DataFrame.apply()

Types of functions

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Match the types of functions that can be used in the .apply() method with their examples.

Match the items from left and right columns

Lambda function

Numpy function

Pandas function

Custom function

Built-in function

df.apply(lambda x: x.lower())

df.apply(np.max)

df.apply(clean_text, axis=1)

df['one_column'].map({'A': 'B', 'B':'C'})

df.apply(min, axis=1)

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