Function rgsl::statistics::mean

pub fn mean(data: &[f64], stride: usize, n: usize) -> f64

This function returns the arithmetic mean of data, a dataset of length n with stride stride. The arithmetic mean, or sample mean, is denoted by \Hat\mu and defined as,

\Hat\mu = (1/N) \sum x_i

where x_i are the elements of the dataset data. For samples drawn from a gaussian distribution the variance of \Hat\mu is \sigma^2 / N.