R

R is an excellent program and language for statistical analyses, and I highly recommend it. For further information see:

The R Project (official website)
Crantastic a website with ratings and reviews of various R packages

Projects

semutils

I develop an R package to make exploring data in preparation for latent variable modeling easier. In addition, it has functions to make linking R and Mplus easier. The Mplus related functions are going to be migrated into the MplusAutomation package, but the purely R functions will remain. Perhaps most notably, SEMSummary(). The source code and project page is available online from github.

MplusAutomation

To install the latest stable version from CRAN:

install.packages("MplusAutomation")

To see recent development, go to the project page on github.

postMCMCglmm

I have written a small R package to facilitate prediction and average marginal effects from Bayesian models fit in R using the MCMCglmm function. The source code and project page is available online from github.