open source driving agent
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class FirstOrderFilter:
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# first order filter
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def __init__(self, x0, rc, dt):
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self.x = x0
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self.dt = dt
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self.update_alpha(rc)
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def update_alpha(self, rc):
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self.alpha = self.dt / (rc + self.dt)
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def update(self, x):
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self.x = (1. - self.alpha) * self.x + self.alpha * x
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return self.x
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