25 from daal.algorithms
import svd
26 from daal.data_management
import FileDataSource, DataSourceIface
28 utils_folder = os.path.realpath(os.path.abspath(os.path.dirname(os.path.dirname(__file__))))
29 if utils_folder
not in sys.path:
30 sys.path.insert(0, utils_folder)
31 from utils
import printNumericTable
33 DAAL_PREFIX = os.path.join(
'..',
'data')
37 dataFileName = os.path.join(DAAL_PREFIX,
'batch',
'svd.csv')
39 if __name__ ==
"__main__":
42 dataSource = FileDataSource(
44 DataSourceIface.doAllocateNumericTable,
45 DataSourceIface.doDictionaryFromContext
49 algorithm = svd.Online(fptype=np.float64)
51 while dataSource.loadDataBlock(nRowsInBlock):
53 algorithm.input.set(svd.data, dataSource.getNumericTable())
59 res = algorithm.finalizeCompute()
62 printNumericTable(res.get(svd.singularValues),
"Singular values:")
63 printNumericTable(res.get(svd.rightSingularMatrix),
"Right orthogonal matrix V:")
64 printNumericTable(res.get(svd.leftSingularMatrix),
"Left orthogonal matrix U:", 10)