imblearn.utils.check_neighbors_object(nn_name, nn_object, additional_neighbor=0)[source]

Check the objects is consistent to be a NN.

Several methods in imblearn relies on NN. Until version 0.4, these objects can be passed at initialisation as an integer or a KNeighborsMixin. After only KNeighborsMixin will be accepted. This utility allows for type checking and raise if the type is wrong.

nn_name : str,

The name associated to the object to raise an error if needed.

nn_object : int or KNeighborsMixin,

The object to be checked

additional_neighbor : int, optional (default=0)

Sometimes, some algorithm need an additional neighbors.

nn_object : KNeighborsMixin

The k-NN object.