49 from daal.algorithms
import svd
50 from daal.data_management
import FileDataSource, DataSourceIface
52 utils_folder = os.path.realpath(os.path.abspath(os.path.dirname(os.path.dirname(__file__))))
53 if utils_folder
not in sys.path:
54 sys.path.insert(0, utils_folder)
55 from utils
import printNumericTable
57 DAAL_PREFIX = os.path.join(
'..',
'data')
61 dataFileName = os.path.join(DAAL_PREFIX,
'batch',
'svd.csv')
63 if __name__ ==
"__main__":
66 dataSource = FileDataSource(
68 DataSourceIface.doAllocateNumericTable,
69 DataSourceIface.doDictionaryFromContext
73 algorithm = svd.Online(fptype=np.float64)
75 while dataSource.loadDataBlock(nRowsInBlock):
77 algorithm.input.set(svd.data, dataSource.getNumericTable())
83 res = algorithm.finalizeCompute()
86 printNumericTable(res.get(svd.singularValues),
"Singular values:")
87 printNumericTable(res.get(svd.rightSingularMatrix),
"Right orthogonal matrix V:")
88 printNumericTable(res.get(svd.leftSingularMatrix),
"Left orthogonal matrix U:", 10)