1#[cfg(test)]
2mod tests {
3 #[test]
4 fn it_works() {
5 assert_eq!(2 + 2, 4);
6 }
7}
8
9pub struct ExponentialAverage {
10 beta: f32,
11 moment: f32,
12 pub value: f32,
13 t: i32
14}
15
16impl ExponentialAverage {
17 pub fn new() -> Self {
18 ExponentialAverage {
19 beta: 0.99,
20 moment: 0.,
21 value: 0.,
22 t: 0
23 }
24 }
25
26 pub fn update(&mut self, value: f32) {
27 self.t += 1;
28 self.moment = self.beta * self.moment + (1. - self.beta) * value;
29 self.value = self.moment / (f32::powi(1. - self.beta, self.t));
31 }
32
33 pub fn reset(&mut self) {
34 self.moment = 0.;
35 self.value = 0.;
36 self.t = 0;
37 }
38}