"""
=================================================
Plot naive silhouette 
=================================================

quantifies the quality  of clustering silhouette 
"""
# Author: L.Kouadio 
# Licence: BSD-3-clause 

#%%
import numpy as np 
from watex.exlib.sklearn import KMeans 
from watex.datasets import load_iris 
from watex.utils.plotutils import plot_silhouette
d= load_iris ()
X= d.data [:, 0][:, np.newaxis] # take the first axis 
km= KMeans (n_clusters =3 , init='k-means++', n_init =10 , 
                    max_iter = 300 , 
                    tol=1e-4, 
                    random_state =0 
                    )
y_km = km.fit_predict(X) 
plot_silhouette (X, y_km)