Function simple_ml::simple_linear_regression_prediction

pub fn simple_linear_regression_prediction<T>(
    train: &Vec<(T, T)>, 
    test: &Vec<(T, T)>
) -> Vec<T> where
    T: Sum<T> + Div<Output = T> + Debug + Display + Add + Copy + Add<T, Output = T> + Sub<T, Output = T> + Mul<T, Output = T> + FromStr,
    <T as FromStr>::Err: Debug,