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Predict class mismatch when using Probabilities = TRUE #1

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actuarial-lonewolf opened this issue May 20, 2021 · 0 comments
Open

Predict class mismatch when using Probabilities = TRUE #1

actuarial-lonewolf opened this issue May 20, 2021 · 0 comments

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@actuarial-lonewolf
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Hi,

I've been playing around the WeightSVM package and noticed something odd.

I trained a model, on a three-class dataset, using the option probability = TRUE

I then tried to predict on a new data set.

In the predict function,

  • when specifying probability = FALSE, I get a class prediction for every row.
  • when specifying probability = TRUE, the class predictions are much different than the previous one.

Is this normal behavior?
It looks like the cutoff is different in the two methods?
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