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[SOLVED] Binominal to Numerical

cliftonarmscliftonarms Member Posts: 32 Contributor II
edited November 2018 in Help
I need to use a classification prediction result value that is a binominal in a calculation, but it does not function in calculations and I cannot find a "Binominal to Numerical" operator.

Im trying to do the following

prediction(binominal) x attribute(real)

The prediction variable is 1 or -1

I have tried "generate attribute" with an "if" statement to convert the binominal, but that does not work either.

Any ideas.

Answers

  • cliftonarmscliftonarms Member Posts: 32 Contributor II
    After half a bottle of red I had inspiration.

    By treating the binomial value as a string i.e. enclosing it in quotes, you can then test its value correctly and create a real variable via "generate attribute"
  • awchisholmawchisholm RapidMiner Certified Expert, Member Posts: 458 Unicorn
    Hello,

    You could probably use polynominal to numerical - binominals are just frustrated polynominals after all.

    Cheers

    Andrew
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