48 from daal.algorithms
import qr
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')
60 dataFileName = os.path.join(DAAL_PREFIX,
'batch',
'qr.csv')
62 if __name__ ==
"__main__":
65 dataSource = FileDataSource(
67 DataSourceIface.doAllocateNumericTable,
68 DataSourceIface.doDictionaryFromContext
72 algorithm = qr.Online()
74 while dataSource.loadDataBlock(nRowsInBlock) == nRowsInBlock:
76 algorithm.input.set(qr.data, dataSource.getNumericTable())
82 res = algorithm.finalizeCompute()
85 printNumericTable(res.get(qr.matrixQ),
"Orthogonal matrix Q:", 10)
86 printNumericTable(res.get(qr.matrixR),
"Triangular matrix R:")