4. Advanced

4.1 RandomVar

4.2 Function-like types

4.2.1 Ker

4.2.2 CostFunc

4.2.3 StatsIt

4.3 Optimizers

4.4 Miscalleanous utilities

The PLearnLibrary/PLearnUtils directory contains classes and functions to perform various useful things such as graphically displaying things. The Scripts directory contains a number of perl-scripts and also binary programs to both help manage the source-tree, and to manipulate matrix files.