50 from daal.algorithms
import pca
51 from daal.data_management
import FileDataSource, DataSourceIface
53 utils_folder = os.path.realpath(os.path.abspath(os.path.dirname(os.path.dirname(__file__))))
54 if utils_folder
not in sys.path:
55 sys.path.insert(0, utils_folder)
56 from utils
import printNumericTable
58 DAAL_PREFIX = os.path.join(
'..',
'data')
62 dataFileName = os.path.join(DAAL_PREFIX,
'online',
'pca_normalized.csv')
64 if __name__ ==
"__main__":
67 dataSource = FileDataSource(
68 dataFileName, DataSourceIface.doAllocateNumericTable,
69 DataSourceIface.doDictionaryFromContext
73 algorithm = pca.Online(fptype=np.float64)
75 while(dataSource.loadDataBlock(nVectorsInBlock) == nVectorsInBlock):
77 algorithm.input.setDataset(pca.data, dataSource.getNumericTable())
82 result = algorithm.finalizeCompute()
85 printNumericTable(result.get(pca.eigenvalues),
"Eigenvalues:")
86 printNumericTable(result.get(pca.eigenvectors),
"Eigenvectors:")