package com.intel.daal.examples.datasource;
import java.nio.DoubleBuffer;
import com.intel.daal.data_management.data.DataDictionary;
import com.intel.daal.data_management.data.NumericTable;
import com.intel.daal.data_management.data.HomogenNumericTable;
import com.intel.daal.data_management.data.RowMergedNumericTable;
import com.intel.daal.examples.utils.Service;
import com.intel.daal.services.DaalContext;
class DataStructuresRowMerged {
private static final int nVectors1 = 5;
private static final int nVectors2 = 6;
private static final int nFeatures = 5;
private static final int firstReadRow = 3;
private static final int nRead = 5;
private static DaalContext context = new DaalContext();
public static void main(String[] args) {
System.out.println("Row Merged numeric table example");
int readFeatureIdx;
double[] data1 = {
0.0, 0.1, 0.2, 0.3, 0.4,
1.0, 1.1, 1.2, 1.3, 1.4,
2.0, 2.1, 2.2, 2.3, 2.4,
3.0, 3.1, 3.2, 3.3, 3.4,
4.0, 4.1, 4.2, 4.3, 4.4,
};
double[] data2 = {
0.6, 0.7, 0.8, 0.9, 1,
1.6, 1.7, 1.8, 1.9, 2,
2.6, 2.7, 2.8, 2.9, 3,
3.6, 3.7, 3.8, 3.9, 4,
4.6, 4.7, 4.8, 4.9, 5,
5.6, 5.7, 5.8, 5.9, 6
};
HomogenNumericTable dataTable1 = new HomogenNumericTable(context, DataDictionary.FeaturesEqual.equal, data1, nFeatures, nVectors1);
HomogenNumericTable dataTable2 = new HomogenNumericTable(context, DataDictionary.FeaturesEqual.equal, data2, nFeatures, nVectors2);
RowMergedNumericTable dataTable = new RowMergedNumericTable(context);
dataTable.addNumericTable(dataTable1);
dataTable.addNumericTable(dataTable2);
DoubleBuffer dataDouble = DoubleBuffer.allocate(0);
dataDouble = dataTable.getBlockOfRows(firstReadRow, nRead, dataDouble);
printDoubleBuffer(dataDouble, nFeatures, nRead, "Print rows from row merged numeric table:");
for (int i = 0; i < nFeatures; i++) dataDouble.put(i, dataDouble.get(i) * dataDouble.get(i));
dataTable.releaseBlockOfRows(firstReadRow, nRead, dataDouble);
dataDouble = dataTable1.getBlockOfRows(0, nRead, dataDouble);
printDoubleBuffer(dataDouble, nFeatures, nRead, "Print rows from first homogen numeric table:");
dataTable1.releaseBlockOfRows(0, nRead, dataDouble);
dataDouble = dataTable2.getBlockOfRows(0, nRead, dataDouble);
printDoubleBuffer(dataDouble, nFeatures, nRead, "Print rows from second homogen numeric table:");
dataTable2.releaseBlockOfRows(0, nRead, dataDouble);
context.dispose();
}
private static void printDoubleBuffer (DoubleBuffer buf, int nColumns, int nRows, String message) {
int step = (int)nColumns;
System.out.println(message);
for (int i = 0; i < nRows; i++) {
for (int j = 0; j < nColumns; j++) {
System.out.format("%6.3f ", buf.get(i * step + j));
}
System.out.println("");
}
System.out.println("");
}
}