Function rgsl::statistics::wkurtosis_m_sd

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

This function computes the weighted kurtosis of the dataset data using the given values of the weighted mean and weighted standard deviation, wmean and wsd.