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FLOAT_MAX = 1000000.0
FLOAT_MIN = -float('inf')
class MinMaxStats:
def __init__(self) -> None:
self.clear()
self.value_delta_max = 0
def set_delta(self, value_delta_max: float) -> None:
self.value_delta_max = value_delta_max
def update(self, value: float) -> None:
if value > self.maximum:
self.maximum = value
if value < self.minimum:
self.minimum = value
def clear(self) -> None:
self.minimum = FLOAT_MAX
self.maximum = FLOAT_MIN
def normalize(self, value: float) -> float:
norm_value = value
delta = self.maximum - self.minimum
if delta > 0:
if delta < self.value_delta_max:
norm_value = (norm_value - self.minimum) / self.value_delta_max
else:
norm_value = (norm_value - self.minimum) / delta
return norm_value
class MinMaxStatsList:
def __init__(self, num: int) -> None:
self.num = num
self.stats_lst = [MinMaxStats() for _ in range(self.num)]
def set_delta(self, value_delta_max: float) -> None:
for i in range(self.num):
self.stats_lst[i].set_delta(value_delta_max)
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