Python Feedback Examples

Example #1

import lib601.sm as sm

def neg(inp):
    return not(inp)

negate = sm.PureFunction(neg)

alternating = sm.Feedback(sm.Cascade(negate, sm.Delay(True)))

print alternating.transduce([1,2,3,True,False])

Example #2

File: 3-1-6.py Project: athomaz00/MIT-1

from lib601 import sm

negate = sm.PureFunction(lambda x: not x)
feedback = sm.Feedback(negate)

Example #3

File: exercise.py Project: luxuriance19/development

def makeCounter(init, step):
    return sm.Feedback(sm.Cascade(Increment(step), Delay(init)))

Example #4

File: 3.1.6FeedbackSM.py Project: lys201j3333/EECS-6.01

import lib601.sm as sm

# Define negate to be an instance of sm.PureFunction that takes a boolean
# and returns the negation of it
def negFunct(boolean):
	return not boolean

class PureFunction(sm.SM):
	def __init__(self, f):
		self.f = f
	def getNextValues(self,state,inp):
		return (state,self.f(inp))

negate = sm.PureFunction(negFunct)
# negate.transduce([True,False],verbose = True)

# Use sm.Feedback,sm.Cascade, and negate to construct an instance whose output alternates
# between True and False for any input sequence; starting with true.

alternating = sm.Feedback(sm.Cascade(sm.Delay(False),negate))
alternating.transduce([1,True,False,True,False,True,False],verbose = True)

# Not totally sure how I made this work, but hey it does.