48 from daal.algorithms
import covariance
49 from daal.data_management
import FileDataSource, DataSourceIface
51 utils_folder = os.path.realpath(os.path.abspath(os.path.dirname(os.path.dirname(__file__))))
52 if utils_folder
not in sys.path:
53 sys.path.insert(0, utils_folder)
54 from utils
import printNumericTable
56 DAAL_PREFIX = os.path.join(
'..',
'data')
59 datasetFileName = os.path.join(DAAL_PREFIX,
'batch',
'covcormoments_dense.csv')
62 if __name__ ==
"__main__":
65 dataSource = FileDataSource(
66 datasetFileName, DataSourceIface.doAllocateNumericTable,
67 DataSourceIface.doDictionaryFromContext
71 algorithm = covariance.Online()
73 while (dataSource.loadDataBlock(nObservations) == nObservations):
75 algorithm.input.set(covariance.data, dataSource.getNumericTable())
81 res = algorithm.finalizeCompute()
83 printNumericTable(res.get(covariance.covariance),
"Covariance matrix:")
84 printNumericTable(res.get(covariance.mean),
"Mean vector:")