"[SOLVED] Normalise before or after Replace Missing Values?"

ben_hben_h Member Posts: 17 image Contributor II
edited June 2019 in Help
Is there any difference between having a Normalise operator before or after Replace Missing Values?
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Answers

  • MariusHelfMariusHelf RapidMiner Certified Expert, Member Posts: 1,869 image Unicorn
    Yes, there is an implication: Normalize calculates the scaling factors based on the actual data. If you perform a simple range transformation, Normalize is not affected, if the replenishment values are inside the original data range. However, if you perform a Z-Transformation, the scaling factors may be influenced by the values that you add to your data.

    Best regards,
    Marius
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