It appears you don't have a PDF plugin for this browser. You can click here to download the reference manual.
1.3.3 by Kofi Placid Adragni, 9 years ago
http://www.jstatsoft.org/v61/i03/
Browse source code at https://github.com/cran/ldr
Authors: Kofi Placid Adragni , Andrew Raim
Documentation: PDF Manual
GPL (>= 2) license
Depends on GrassmannOptim, Matrix
See at CRAN