Function rgsl::statistics::absdev_m

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

This function computes the absolute deviation of the dataset data relative to the given value of mean,

absdev = (1/N) \sum |x_i - mean|

This function is useful if you have already computed the mean of data (and want to avoid recomputing it), or wish to calculate the absolute deviation relative to another value (such as zero, or the median).