Create a python function

  • Status: Closed
  • Prize: $20
  • Entries Received: 7
  • Winner: sakhawat2

Contest Brief

I need a solution on this pandas dataframe. As you can see from the images the column 'pre3' should contain the 3 previous values from 'Brand' column including the same row Brand value.

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Public Clarification Board

  • uzairnaseer920
    uzairnaseer920
    • 4 years ago

    ???????????//

    • 4 years ago
  • uzairnaseer920
    uzairnaseer920
    • 4 years ago

    Please decide qucik

    • 4 years ago
  • visweswaran1998
    visweswaran1998
    • 4 years ago

    If there is no three previous values should enter 0?

    • 4 years ago
    1. amin32846
      Contest Holder
      • 4 years ago

      Hi, if the 3 previous values not available, it can return NaN or just 0

      • 4 years ago

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