Examples with VectorMaxAbsScalerPredictStreamOp com.alibaba.alink.operator.stream.dataproc.vector.VectorMaxAbsScalerPredictStreamOp used on opensource projects

Example 1 with VectorMaxAbsScalerPredictStreamOp

use of com.alibaba.alink.operator.stream.dataproc.vector.VectorMaxAbsScalerPredictStreamOp in project Alink by alibaba.

the class VectorMaxAbsTest method test.

@Test
public void test() throws Exception {
    BatchOperator batchData = new TableSourceBatchOp(GenerateData.getDenseBatch());
    StreamOperator streamData = new TableSourceStreamOp(GenerateData.getDenseStream());
    VectorMaxAbsScalerTrainBatchOp op = new VectorMaxAbsScalerTrainBatchOp().setSelectedCol("vec").linkFrom(batchData);
    List<Row> rows = new VectorMaxAbsScalerPredictBatchOp().setOutputCol("res").linkFrom(op, batchData).collect();
    VectorStandardScalerTest.assertDv(VectorUtil.getDenseVector(rows.get(0).getField(1)), new DenseVector(new double[] { 0.25, 0.6666 }));
    VectorStandardScalerTest.assertDv(VectorUtil.getDenseVector(rows.get(1).getField(1)), new DenseVector(new double[] { -0.25, -1. }));
    VectorStandardScalerTest.assertDv(VectorUtil.getDenseVector(rows.get(2).getField(1)), new DenseVector(new double[] { 1., 0.6666 }));
    new VectorMaxAbsScalerPredictStreamOp(op).setOutputCol("res").linkFrom(streamData).print();
    StreamOperator.execute();
}