22 from daal.algorithms
import svd
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',
'svd.csv')
36 if __name__ ==
"__main__":
39 dataSource = FileDataSource(
41 DataSourceIface.doAllocateNumericTable,
42 DataSourceIface.doDictionaryFromContext
46 dataSource.loadDataBlock(nRows)
49 algorithm = svd.Batch()
51 algorithm.input.set(svd.data, dataSource.getNumericTable())
54 res = algorithm.compute()
57 printNumericTable(res.get(svd.singularValues),
"Singular values:")
58 printNumericTable(res.get(svd.rightSingularMatrix),
"Right orthogonal matrix V:")
59 printNumericTable(res.get(svd.leftSingularMatrix),
"Left orthogonal matrix U:", 10)