zscore_dense_batch.cpp

/* file: zscore_dense_batch.cpp */
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/*
!  Content:
!    C++ example of Z-score normalization algorithm.
!******************************************************************************/

#include "daal.h"
#include "service.h"

using namespace std;
using namespace daal;
using namespace daal::algorithms;
using namespace daal::algorithms::normalization;

/* Input data set parameters */
string datasetName = "../data/batch/normalization.csv";

int main()
{
    /* Retrieve the input data */
    FileDataSource<CSVFeatureManager> dataSource(datasetName, DataSource::doAllocateNumericTable, DataSource::doDictionaryFromContext);
    dataSource.loadDataBlock();

    NumericTablePtr data = dataSource.getNumericTable();

    /* Create an algorithm */
    zscore::Batch<float, zscore::sumDense> algorithm;

    /* Set an input object for the algorithm */
    algorithm.input.set(zscore::data, data);

    /* Compute Z-score normalization function */
    algorithm.compute();

    /* Print the results of stage */
    zscore::ResultPtr res = algorithm.getResult();

    printNumericTable(data, "First 10 rows of the input data:", 10);
    printNumericTable(res->get(zscore::normalizedData), "First 10 rows of the z-score normalization result:", 10);

    return 0;
}
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