47 from daal.algorithms
import covariance
48 from daal.data_management
import FileDataSource, DataSourceIface
50 utils_folder = os.path.realpath(os.path.abspath(os.path.dirname(os.path.dirname(__file__))))
51 if utils_folder
not in sys.path:
52 sys.path.insert(0, utils_folder)
53 from utils
import printNumericTable
55 DAAL_PREFIX = os.path.join(
'..',
'data')
58 datasetFileName = os.path.join(DAAL_PREFIX,
'batch',
'covcormoments_dense.csv')
61 if __name__ ==
"__main__":
64 dataSource = FileDataSource(
65 datasetFileName, DataSourceIface.doAllocateNumericTable,
66 DataSourceIface.doDictionaryFromContext
70 algorithm = covariance.Online()
72 while (dataSource.loadDataBlock(nObservations) == nObservations):
74 algorithm.input.set(covariance.data, dataSource.getNumericTable())
80 res = algorithm.finalizeCompute()
82 printNumericTable(res.get(covariance.covariance),
"Covariance matrix:")
83 printNumericTable(res.get(covariance.mean),
"Mean vector:")