Function rgsl::statistics::wabsdev

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

This function computes the weighted absolute deviation from the weighted mean of data. The absolute deviation from the mean is defined as,

absdev = (\sum w_i |x_i - \Hat\mu|) / (\sum w_i)