Baseline coefficient matrices for RLI SGPt analyses using rliSGP from the SGP Package
The package RLImatrices contains baseline coefficient matrices utilized by the function rliSGP for calculation of student growth percentiles and percentile growth trajectories using historical data.
Install latest release from Github
install.packages("devtools")
require(devtools)
install_github("CenterForAssessment/RLImatrices")
require(RLImatrices)
To install from Github you might need: Windows: Rtools (http://cran.r-project.org/bin/windows/Rtools/), OS X: xcode (from the app store), Linux: apt-get install r-base-dev (or similar).