new plot example

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/lava@1025 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
pcor updated - fixed error in ordreg(...,fast=TRUE). Still not exported to namespace

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/lava@1026 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
doc...

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/lava@1027 edb9625f-4e0d-4859-8d74-9fd3b1da38cb