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How to compare a column among two excel file and find out which one is new, change or deleted?

victor_haobamvictor_haobam Member Posts: 1 Contributor I
edited November 2018 in Help

How to compare a column among two excel file and find out which one is new, change or deleted?

Please refer the attached file to understand the issue.

TEST.jpg 205.4K
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    Thomas_OttThomas_Ott RapidMiner Certified Analyst, RapidMiner Certified Expert, Member Posts: 1,761 Unicorn

    My first thought is to use the Set Minus operator and subtract out one file from the other.

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    Telcontar120Telcontar120 Moderator, RapidMiner Certified Analyst, RapidMiner Certified Expert, Member Posts: 1,635 Unicorn
    If you are looking at comparing values in one column to itself, you can look at the lag operator from the series extension.  If you are looking to compare two separate columns for the same examples, then use Generate Attributes to calculate the difference.  And if you are looking to compare whether the examples are the same, then use a Join (or Set Minus like Tom originally recommended).
    Brian T.
    Lindon Ventures 
    Data Science Consulting from Certified RapidMiner Experts
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