def test_scale(self):
kND = KNearestDatasets()
metafeatures = pd.DataFrame([self.anneal, self.krvskp])
metafeatures, other = kND._scale(metafeatures, self.labor)
from pandas.util.testing import assert_series_equal
# Series.equal does not work properly with floats...
assert_series_equal(metafeatures.iloc[0],
pd.Series({"number_of_instances": 0.267919719656,
"number_of_classes": 1,
"number_of_features": 1}))
