com.alibaba.alink.operator.stream.dataproc.vector.VectorAssemblerStreamOp Maven / Gradle / Ivy
package com.alibaba.alink.operator.stream.dataproc.vector;
import org.apache.flink.ml.api.misc.param.Params;
import com.alibaba.alink.operator.common.dataproc.vector.VectorAssemblerMapper;
import com.alibaba.alink.operator.stream.utils.MapStreamOp;
import com.alibaba.alink.params.dataproc.vector.VectorAssemblerParams;
/**
* VectorAssembler is a transformer that combines a given list of columns(vector or numerical column) into a single
* vector column. It is useful for combining features generated by different feature transformers into a
* single feature vector, in order to train ML models like logistic regression and decision trees. VectorAssembler
* accepts the following input column types: all numeric types, and vector type. In each row, the values
* of the input columns will be concatenated into a vector in the specified order.
*
* this operator cam transform stream data.
*
*/
public final class VectorAssemblerStreamOp extends MapStreamOp
implements VectorAssemblerParams {
public VectorAssemblerStreamOp(Params params) {
super(VectorAssemblerMapper::new, params);
}
public VectorAssemblerStreamOp() {
this(null);
}
}