Function simple_ml::spearman_rank

pub fn spearman_rank<T>(list1: &Vec<T>) -> Vec<(T, f64)> where
    T: Sum<T> + Div<Output = T> + Debug + Display + Add + Copy + PartialOrd + Add<T, Output = T> + Sub<T, Output = T> + Mul<T, Output = T> + ToString + FromStr,
    <T as FromStr>::Err: Debug,