# Efficient calculation for L-Kurtosis?

I am doing some statistical signal analysis and was wondering if there are any C/Java packages that do L-moment calculations, specifically L-Kurtosis as I am wanting to do things such as differentiating delta trains and sine waves with similar standard deviations, as one example.

If there are other more appropriate shape statistics to use, I would appreciate any information there as well.

Lmoments_calc and Lmomcov_calc are internal C++ functions called by Lmoments and Lmomcov. The direct use of these functions is not recommended.