wufaxian
人们专门弄了一个自然对数函数的底数 e,是为什么?
以上文章解释得很清楚,共同学习吧,我有另一个问题是
The definition of a weight function is discussed in the article published by Dixon and Coles, where they suggested the exponential weight function. We suggest that half normal distribution could be better to emphasize the most recent results even more heavily.
$$WeightFunc tion = exp( a * ( t − t_{0} ) ^ 2 )$$
E q. 3. 6 where a = half normal distribution parameter, t = particular day of the season and t0 = starting day of the season.