Specifically, how can I find the possible values of sub-option "KernelType" of option "Method" for Classify? Here's an example:

trainingset = 
  ExampleData[{"MachineLearning", "Titanic"}, "TrainingData"];
c = Classify[trainingset, 
  Method -> {"SupportVectorMachine", 
    "KernelType" -> "RadialBasisFunction", 
    "MulticlassMethod" -> "OneVersusAll"}]

And more generally (although this has been asked previously) I'd like to programmatically enumerate all discrete string values for valid sub-options for any given function.

  • 2
    $\begingroup$ Linear, Sigmoid, Polynomial, RadialBasisFunction, Automatic $\endgroup$
    – Rojo
    Nov 6, 2014 at 5:40
  • $\begingroup$ Thanks @Rojo! How did you find these? $\endgroup$
    – user5601
    Nov 6, 2014 at 5:44
  • $\begingroup$ With some very manual and ungeneralizeable spelunking. This machine learning package is quite closed $\endgroup$
    – Rojo
    Nov 6, 2014 at 6:03
  • 1
    $\begingroup$ Perhaps because of lack of time, perhaps because they don't feel confident about the functionality not having bugs or being future-proof, who knows. What I don't like is the fact that they try hard to hide the code. Its all Locked $\endgroup$
    – Rojo
    Nov 6, 2014 at 16:32
  • 1
    $\begingroup$ How about the options for "MulticlassMethod"? $\endgroup$
    – PFD
    Jun 26, 2015 at 0:08

1 Answer 1


Sub-options for Method -> "SupportVectorMachine" include:

  • Linear
  • Sigmoid
  • Polynomial
  • RadialBasisFunction
  • Automatic

In 12.3, there is a help page ref/method/SupportVectorMachine

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