[ATTN: needs to be updated with R code for Spectral Series regression, Spectral Series CDE, FlexCode (see links from published papers for now); R and Python code for photo-z estimation (upcoming)]

Diffusion Maps

Example code in Matlab.

R package

Treelets

Test code (not optimized) in Matlab.

R package

C++ code by Di Liu.

For details on the algorithm, see the Annals of Applied Statistics, Vol 2, No 2, 2008. [pdf]