"""
======================================================
Plot errors vs epochs 
======================================================

visualizes the cost(errors ) against the number of epochs  of two different 
learning rates. 
"""
# Author: L.Kouadio 
# Licence: BSD-3-clause 

#%%
from watex.datasets import load_iris 
from watex.base import AdalineGradientDescent
from watex.utils.plotutils import plot_cost_vs_epochs
X, y = load_iris (return_X_y= True )
ada1 = AdalineGradientDescent (n_iter= 10 , eta= .01 ).fit(X, y) 
ada2 = AdalineGradientDescent (n_iter=10 , eta =.0001 ).fit(X, y)
plot_cost_vs_epochs (regs = [ada1, ada2] )