"[Solved] Missing values: The example set has no examples"

w_faheyw_fahey Member Posts: 4 Contributor I
edited June 9 in Help
Hi

I have a simple process where I am trying to replace the missing values in a dataset using k-NN. When I connect my dataset to the "Impute Missing Values" Operator I get the error message "The example set has no examples"

The code is too large to paste here as there are about 300 variables.

Any help much appreciated
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Answers

  • sgenzersgenzer 12Administrator, Moderator, Employee, RapidMiner Certified Analyst, Community Manager, Member, University Professor, PM Moderator Posts: 2,329  Community Manager
    I assume you are trying to impute missing values before k-NN?
  • w_faheyw_fahey Member Posts: 4 Contributor I
    Hi Scott,

    The Impute missing values operator is nested. Inside this operator is the K-NN operator. Retreiving the dataset (an excel file) and the Impute missing values are all that is in this workflow.

    Will
  • w_faheyw_fahey Member Posts: 4 Contributor I
    Hi - I have sorted this out. There were columns in the dataset which had no values at all which, upon refection, it was unreasonable of me to expect K-NN to fill in the values.

    Thank you for your help regardless
  • sgenzersgenzer 12Administrator, Moderator, Employee, RapidMiner Certified Analyst, Community Manager, Member, University Professor, PM Moderator Posts: 2,329  Community Manager
    ah good.  Glad you got it to work!

    Scott
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