package com.intel.daal.examples.datasource;
import com.intel.daal.data_management.data.NumericTable;
import com.intel.daal.data_management.data_source.*;
import com.intel.daal.examples.utils.Service;
import com.intel.daal.services.DaalContext;
class DataSourceFeatureExtraction {
private static final String dataset = "../data/batch/kmeans_dense.csv";
private static DaalContext context = new DaalContext();
public static void main(String[] args) throws java.io.FileNotFoundException, java.io.IOException {
FileDataSource dataSource = new FileDataSource(context, dataset,
DataSource.DictionaryCreationFlag.DoDictionaryFromContext,
DataSource.NumericTableAllocationFlag.DoAllocateNumericTable);
dataSource.getFeatureManager().addModifier(new ColumnFilter(context).list(new long[]{1, 2, 5}));
dataSource.getFeatureManager().addModifier(new OneHotEncoder(context, 1, 3));
dataSource.loadDataBlock();
NumericTable table = dataSource.getNumericTable();
Service.printNumericTable("Loaded data", table, 4, 20);
context.dispose();
}
}