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

Example 1 with VectorMinMaxScalerPredictStreamOp

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

the class VectorMinMaxTest method test.

@Test
public void test() throws Exception {
    BatchOperator batchData = new TableSourceBatchOp(GenerateData.getDenseBatch());
    StreamOperator streamData = new TableSourceStreamOp(GenerateData.getDenseStream());
    VectorMinMaxScalerTrainBatchOp op = new VectorMinMaxScalerTrainBatchOp().setSelectedCol("vec").linkFrom(batchData);
    List<Row> rows = new VectorMinMaxScalerPredictBatchOp().linkFrom(op, batchData).collect();
    assertEquals(rows.get(0).getField(0), new DenseVector(new double[] { 0.4, 1.0 }));
    assertEquals(rows.get(1), Row.of(new DenseVector(new double[] { 0., 0.0 })));
    assertEquals(rows.get(2), Row.of(new DenseVector(new double[] { 1.0, 1.0 })));
    new VectorMinMaxScalerPredictStreamOp(op).linkFrom(streamData).print();
    StreamOperator.execute();
}