Did I find the right examples for you? yes no

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src/o/r/Orange-2.7.2/Orange/testing/unit/tests/test_svm.py   Orange(Download)
def sparse_data_iter():
    for name, (data, ) in testing.datasets_iter(datasets):
        yield name, (to_sparse(data), )
 
 

src/o/r/Orange-2.7.2/Orange/testing/unit/tests/test_logreg.py   Orange(Download)
def datasets_iter():
    for name, (data,) in testing.datasets_iter(testing.CLASSIFICATION_DATASETS):
        if len(data.domain.class_var.values) == 2:
            yield name, (data,)