from sklearn.neighbors import KNeighborsClassifier

def KBest_LDA_KNB(k, n, p):
    tuned_parameters = [
        {   'feature_selection' : [SelectKBest()],
            'feature_selection__k' : k,
            'feature_reduction' : [LinearDiscriminantAnalysis()],
            'feature_reduction__n_components' : n,
            'clf__n_neighbors' : p
        },
    ]
    estimators = [('feature_selection', SelectKBest()), ('feature_reduction', LinearDiscriminantAnalysis()) ,('clf', KNeighborsClassifier(n))]
    return (estimators, tuned_parameters)