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')
59 datasetFileName = os.path.join(DAAL_PREFIX,
'batch',
'qr.csv')
62 if __name__ ==
"__main__":
65 dataSource = FileDataSource(
66 datasetFileName, DataSourceIface.doAllocateNumericTable,
67 DataSourceIface.doDictionaryFromContext
71 dataSource.loadDataBlock(nRows)
74 algorithm = qr.Batch()
76 algorithm.input.set(qr.data, dataSource.getNumericTable())
78 res = algorithm.compute()
81 printNumericTable(res.get(qr.matrixQ),
"Orthogonal matrix Q:", 10)
82 printNumericTable(res.get(qr.matrixR),
"Triangular matrix R:")