24 from daal.algorithms
import svd
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',
'svd.csv')
38 if __name__ ==
"__main__":
41 dataSource = FileDataSource(
43 DataSourceIface.doAllocateNumericTable,
44 DataSourceIface.doDictionaryFromContext
48 dataSource.loadDataBlock(nRows)
51 algorithm = svd.Batch()
53 algorithm.input.set(svd.data, dataSource.getNumericTable())
56 res = algorithm.compute()
59 printNumericTable(res.get(svd.singularValues),
"Singular values:")
60 printNumericTable(res.get(svd.rightSingularMatrix),
"Right orthogonal matrix V:")
61 printNumericTable(res.get(svd.leftSingularMatrix),
"Left orthogonal matrix U:", 10)