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comparison python/moving.py @ 501:c81cbd6953fb

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update to classify speed to remove data at both ends
author Nicolas Saunier <nicolas.saunier@polymtl.ca>
date Tue, 20 May 2014 15:18:55 -0400
parents 6464e4f0cc26
children a40c75f04903
comparison
equal deleted inserted replaced
500:3b99d712bbee 501:c81cbd6953fb
803 def predictPosition(self, instant, nTimeSteps, externalAcceleration = Point(0,0)): 803 def predictPosition(self, instant, nTimeSteps, externalAcceleration = Point(0,0)):
804 '''Predicts the position of object at instant+deltaT, 804 '''Predicts the position of object at instant+deltaT,
805 at constant speed''' 805 at constant speed'''
806 return predictPositionNoLimit(nTimeSteps, self.getPositionAtInstant(instant), self.getVelocityAtInstant(instant), externalAcceleration) 806 return predictPositionNoLimit(nTimeSteps, self.getPositionAtInstant(instant), self.getVelocityAtInstant(instant), externalAcceleration)
807 807
808 def classifyUserTypeSpeed(self, threshold, statisticsFunc = median): 808 def classifyUserTypeSpeed(self, threshold, statisticsFunc = median, ignoreNInstantsAtEnds = 0):
809 '''Classifies slow and fast road users 809 '''Classifies slow and fast road users
810 slow: non-motorized -> pedestrians 810 slow: non-motorized -> pedestrians
811 fast: motorized -> cars''' 811 fast: motorized -> cars'''
812 if statisticsFunc(self.velocities.norm()) >= threshold: 812 if ignoreNInstantsAtEnds > 0:
813 speeds = self.velocities.norm()[ignoreNInstantsAtEnds:-ignoreNInstantsAtEnds]
814 else:
815 speeds = self.velocities.norm()
816 if statisticsFunc(speeds) >= threshold:
813 self.setUserType(userType2Num['car']) 817 self.setUserType(userType2Num['car'])
814 else: 818 else:
815 self.setUserType(userType2Num['pedestrian']) 819 self.setUserType(userType2Num['pedestrian'])
816 820
817 @staticmethod 821 @staticmethod