13 lines
411 B
Python
13 lines
411 B
Python
class ThreeParameterLogistic:
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def __init__(self, model_params, kwargs):
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self.model_params = model_params
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# check if exists, if not error out
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self.b_param = kwargs['b_param']
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self.e = 2.71828
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self.theta = kwargs['theta']
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def result(self):
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a = self.model_params.a_param
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c = self.model_params.c_param
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return c + (1 - c) * (1 / (1 + self.e**(-a * (self.theta - self.b_param))))
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