24 from daal.algorithms
import qr
25 from daal.data_management
import FileDataSource, DataSourceIface
27 utils_folder = os.path.realpath(os.path.abspath(os.path.dirname(os.path.dirname(__file__))))
28 if utils_folder
not in sys.path:
29 sys.path.insert(0, utils_folder)
30 from utils
import printNumericTable
32 DAAL_PREFIX = os.path.join(
'..',
'data')
35 datasetFileName = os.path.join(DAAL_PREFIX,
'batch',
'qr.csv')
38 if __name__ ==
"__main__":
41 dataSource = FileDataSource(
42 datasetFileName, DataSourceIface.doAllocateNumericTable,
43 DataSourceIface.doDictionaryFromContext
47 dataSource.loadDataBlock(nRows)
50 algorithm = qr.Batch()
52 algorithm.input.set(qr.data, dataSource.getNumericTable())
54 res = algorithm.compute()
57 printNumericTable(res.get(qr.matrixQ),
"Orthogonal matrix Q:", 10)
58 printNumericTable(res.get(qr.matrixR),
"Triangular matrix R:")