24 from daal.algorithms
import covariance
25 from daal.data_management
import FileDataSource, DataSourceIface
27 utils_folder = os.path.realpath(os.path.abspath(os.path.dirname(os.path.dirname(__file__))))
28 if utils_folder
not in sys.path:
29 sys.path.insert(0, utils_folder)
30 from utils
import printNumericTable
32 DAAL_PREFIX = os.path.join(
'..',
'data')
35 datasetFileName = os.path.join(DAAL_PREFIX,
'batch',
'covcormoments_dense.csv')
38 if __name__ ==
"__main__":
41 dataSource = FileDataSource(
42 datasetFileName, DataSourceIface.doAllocateNumericTable,
43 DataSourceIface.doDictionaryFromContext
47 algorithm = covariance.Online()
49 while (dataSource.loadDataBlock(nObservations) == nObservations):
51 algorithm.input.set(covariance.data, dataSource.getNumericTable())
57 res = algorithm.finalizeCompute()
59 printNumericTable(res.get(covariance.covariance),
"Covariance matrix:")
60 printNumericTable(res.get(covariance.mean),
"Mean vector:")