R Packages


This package is based on the paper by Jacobucci, Grimm, & McArdle (2016), found on the Publications page. The package allows for using ridge or lasso penalties on specific parameters in general structural equation models. It is currently an extremely developmental version in both its implementation and theory behind the method. For an Intro, see google group and tutorial


The dtree package combines features from multiple decision tree algorithm. This involves the ability to easily run multiple algorithms at the same time and compare results. Additionally, there is a function, stable(), that uses bootstrap replications to assess the stability of each algorithm on the dataset. CRAN manual here


Building off of the original longRPart package, that is no longer maintained on CRAN, the longRPart2 package updates the functionality to recursively create subgroups based on mixed effects models. Not currently on CRAN, the package is housed and can be downloaded from: here


The autoSEM package takes a number of heuristic search algorithms and applies them to structural equation models. This work was popularized by George Marcoulides and a good summary can be found in his 2012 Handbook of Structural Equation Modeling (Editor Rick Hoyle; 2014) chapter 40, found here. For an Intro to the package usage, see here