Method update

utils/misc.py:55–64

(self, val, n=1, decay=0)

        self.count = 0

    def update(self, val, n=1, decay=0):
        self.val = val
        if decay:
            alpha = math.exp(-n / decay)  # exponential decay over 100 updates
            self.sum = alpha * self.sum + (1 - alpha) * val * n
            self.count = alpha * self.count + (1 - alpha) * n
        else:
            self.sum += val * n
            self.count += n
        self.avg = self.sum / self.count