MLwiN
MLwiN is a statistical software package for fitting multilevel models. It uses both maximum likelihood estimation and Markov chain Monte Carlo methods. MLwiN is based on an earlier package, MLn, but with a graphical user interface.
MLwiN represents multilevel models using mathematical notation including Greek letters and multiple subscripts, so the user needs to be familiar with such notation.
For a tutorial introduction to multilevel models and their applications in medical statistics illustrated using MLwiN, see Goldstein et al.
