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I just started working with the Mathematica machine learning package. When I use Predict, I can predict only numerical values like

Predict[{"ab"->1, "de"->2}]

Can I predict somehow non numerical values like

Predict[{"ab"->"c", "de"->"f"}]

or this

Predict[{"ab" -> {22, 33}, "de" -> {44, 55}}]

By default it does not work and gives an error message:

Predict:Incompatible variable type (Numerical) and variable value({22,33})

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    $\begingroup$ The documentation does not explicitly say that Predict uses methods that only return numerical values, but the implicit message of all the examples is that it is so constrained. $\endgroup$ – m_goldberg Dec 9 '17 at 2:34
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No, Predict is only for regression problems (so should be numerical). Based on your example it looks like you want Classify[] (or with ab -> c maybe SequencePredict[]).

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  • $\begingroup$ Thanks a lot. Classify is not my case. I want to get unknown value, not something already existing. I will check SequencePredict. $\endgroup$ – Zlelik Dec 12 '17 at 22:51

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