perceptron.py

""" This is a class to implement the perceptron artificial nueron """
class Perceptron:
	""" Constructor """
	def __init__(self, w_v=[0]):
		self.weight_vector = w_v
	""" Geter for weight vector """
	def getWeightVector(self):
		return self.weight_vector
	""" Seter for weight vector """
	def setWeightVector(self,w_v):
		self.weight_vector = w_v
	
	"""
	The step function is the function that will decide. 
	There are other functions more interesting for implementation.
	"""
	def step_fnc(self,suma):
		if suma > 0:
			return 1
		else:
			return -1
	"""
	This function implements the matrix product W^T * X
	Where X and W are collumn vectors
	"""
	def fire_fnc(self,input_vector):
		suma = 0
		for index in range(len(input_vector)):
			#print input_vector[index]
			#raw_input()
			suma += self.weight_vector[index]*float(input_vector[index])
		return self.step_fnc(suma)

	def fire(self,input_vector):
		return self.fire_fnc(input_vector)