You have a Pandas DataFrame in wide format, where each row r…
You have a Pandas DataFrame in wide format, where each row represents a customer and there are separate columns for “Purchase_Date_1”, “Purchase_Amount_1”, “Purchase_Date_2”, “Purchase_Amount_2”, and so on, to track multiple purchases. You want to restructure this data for analysis using time-series methods. Which Pandas function would be most suitable for converting this data into long format?
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