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Python for Data Science: Time Series Essentials

Index Definition Index Definition

Methods Description

  • pd.to_datetime(arg): This function converts the argument arg to datetime format. It returns a DataFrame, Series, or ndarray containing datetime objects;
  • set_index(keys): This method sets the DataFrame index using the values of the specified column(s) keys. It returns a new DataFrame with the index set;
  • drop(labels, axis=1, inplace=True): This method removes the specified column(s) from the DataFrame. It returns a new DataFrame if inplace=False, otherwise it modifies the DataFrame in place.


  1. Cast the 'Month' column to datetime format;
  2. Set the 'Month' column as an index of the DataFrame;
  3. Drop the 'Month' column.

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Section 1. Chapter 4