The penalized least squares (PLS) and penalized iteratively reweighted least squares (PIRLS) algorithms from lme4, but written entirely in pure R. The purpose is to clarify how PLS and PIRLS work without having to read through C++ code, and as a sandbox for trying out modified versions of PLS and PIRLS.
Package details 


Author  Steve Walker, Doug Bates 
Maintainer  Steve Walker <[email protected]> 
License  GPL2 
Version  0.10 
Package repository  View on GitHub 
Installation 
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