22 from daal.algorithms
import qr
23 from daal.data_management
import FileDataSource, DataSourceIface
25 utils_folder = os.path.realpath(os.path.abspath(os.path.dirname(os.path.dirname(__file__))))
26 if utils_folder
not in sys.path:
27 sys.path.insert(0, utils_folder)
28 from utils
import printNumericTable
30 DAAL_PREFIX = os.path.join(
'..',
'data')
33 datasetFileName = os.path.join(DAAL_PREFIX,
'batch',
'qr.csv')
36 if __name__ ==
"__main__":
39 dataSource = FileDataSource(
40 datasetFileName, DataSourceIface.doAllocateNumericTable,
41 DataSourceIface.doDictionaryFromContext
45 dataSource.loadDataBlock(nRows)
48 algorithm = qr.Batch()
50 algorithm.input.set(qr.data, dataSource.getNumericTable())
52 res = algorithm.compute()
55 printNumericTable(res.get(qr.matrixQ),
"Orthogonal matrix Q:", 10)
56 printNumericTable(res.get(qr.matrixR),
"Triangular matrix R:")