Examples with VectorMinMaxScaler com.alibaba.alink.pipeline.dataproc.vector.VectorMinMaxScaler used on opensource projects

Example 1 with VectorMinMaxScaler

use of com.alibaba.alink.pipeline.dataproc.vector.VectorMinMaxScaler in project Alink by alibaba.

the class Chap07 method c_4_1.

static void c_4_1() throws Exception {
    BatchOperator<?> source = new CsvSourceBatchOp().setFilePath(DATA_DIR + ORIGIN_FILE).setSchemaStr(SCHEMA_STRING).link(new VectorAssemblerBatchOp().setSelectedCols(FEATURE_COL_NAMES).setOutputCol(VECTOR_COL_NAME).setReservedCols(LABEL_COL_NAME));
    source.link(new VectorSummarizerBatchOp().setSelectedCol(VECTOR_COL_NAME).lazyPrintVectorSummary("< Origin data >"));
    new VectorStandardScaler().setSelectedCol(VECTOR_COL_NAME).fit(source).transform(source).link(new VectorSummarizerBatchOp().setSelectedCol(VECTOR_COL_NAME).lazyPrintVectorSummary("< after Vector Standard Scale >"));
    new VectorMinMaxScaler().setSelectedCol(VECTOR_COL_NAME).fit(source).transform(source).link(new VectorSummarizerBatchOp().setSelectedCol(VECTOR_COL_NAME).lazyPrintVectorSummary("< after Vector MinMax Scale >"));
    new VectorMaxAbsScaler().setSelectedCol(VECTOR_COL_NAME).fit(source).transform(source).link(new VectorSummarizerBatchOp().setSelectedCol(VECTOR_COL_NAME).lazyPrintVectorSummary("< after Vector MaxAbs Scale >"));
    BatchOperator.execute();
}