I am revising my previous posts on the whole process, from getting started with R to using it to do linear modelling and linear mixed-effects modelling.

Sunset over the coast, on the road from Ravenglass to Broughton

What this revision will entail is some rewriting of .R provided code, some updating, some extension. Extensions will focus on model comparison methods, information criteria approaches to model evaluation, and the choices one must make in data analysis.