47 from daal.algorithms
import svd
48 from daal.data_management
import FileDataSource, DataSourceIface
50 utils_folder = os.path.realpath(os.path.abspath(os.path.dirname(os.path.dirname(__file__))))
51 if utils_folder
not in sys.path:
52 sys.path.insert(0, utils_folder)
53 from utils
import printNumericTable
55 DAAL_PREFIX = os.path.join(
'..',
'data')
58 datasetFileName = os.path.join(DAAL_PREFIX,
'batch',
'svd.csv')
61 if __name__ ==
"__main__":
64 dataSource = FileDataSource(
66 DataSourceIface.doAllocateNumericTable,
67 DataSourceIface.doDictionaryFromContext
71 dataSource.loadDataBlock(nRows)
74 algorithm = svd.Batch()
76 algorithm.input.set(svd.data, dataSource.getNumericTable())
79 res = algorithm.compute()
82 printNumericTable(res.get(svd.singularValues),
"Singular values:")
83 printNumericTable(res.get(svd.rightSingularMatrix),
"Right orthogonal matrix V:")
84 printNumericTable(res.get(svd.leftSingularMatrix),
"Left orthogonal matrix U:", 10)