20 lines
404 B
ObjectPascal
20 lines
404 B
ObjectPascal
uses MLABC;
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begin
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var ds := Datasets.Iris;
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var df := ds.Data;
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var X := df.ToMatrix(ds.Features);
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var y := df.EncodeLabels(ds.Target);
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var (Xtrain, Xtest, ytrain, ytest) :=
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Validation.TrainTestSplit(X, y, 0.2, 1);
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var model := new LogisticRegression;
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model.Fit(Xtrain, ytrain);
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var pred := model.Predict(Xtest);
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Println('Accuracy:', Metrics.Accuracy(ytest, pred):0:3);
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end. |