Smoothing by Adaptive Shrinkage // Fast, wavelet-based Empirical Bayes shrinkage methods for signal denoising, including smoothing Poisson-distributed data and Gaussian-distributed data with possibly heteroskedastic error. The algorithms implement the methods described Z. Xing, P. Carbonetto M. Stephens (2021) https://jmlr.org/papers/v22/19-042.html.