stochastic_gradient_descent.py
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	# -- coding: utf-8 --
	"""Stochastic Gradient Descent"""

	def compute_stoch_gradient(y, tx, w):
	"""Compute a stochastic gradient from just few examples n and their corresponding y_n labels."""
	# ***************************************************
	# INSERT YOUR CODE HERE
	# TODO: implement stochastic gradient computation.It's same as the gradient descent.
	# ***************************************************
	raise NotImplementedError


	def stochastic_gradient_descent(y, tx, initial_w, batch_size, max_iters, gamma):
	"""Stochastic gradient descent algorithm."""
	# ***************************************************
	# INSERT YOUR CODE HERE
	# TODO: implement stochastic gradient descent.
	# ***************************************************
	raise NotImplementedError
	return losses, ws