The R-Sessions are a series of blog entries on using R. A large part consists of an R-manual I once wrote. Other posts include some tricks I found out, as well as entries detailing functions and packages I wrote for R. The series already entails over forty posts, so I decided to create an index. It is found below. On a fixed page on this website (www.rensenieuwenhuis.nl/r-project/r-sessions-index/) I will continue to update this index with new editions of the R-Sessions.

A .PDF manual containing many of the R-Sessions material is available here.

Introducing R

• Introducing the R-Sessions
• What is R?
• Why R-Project?
• Getting R-Project
• Getting Packages
• Getting Help

Data Manipultion

• Most Basic of All
• Data Structure
• Getting Data into R
• Data Manipulation
• Conditionals
• Tables

Graphics

• Basic Graphics
• Overlapping Data Points
• Multiple Graphs
• Intermediate Graphics

Mixed Models

• Multilevel Model Specification: LME4
• Generalized Multilevel: LME4
• Helper Functions
• Extractor Functions: NLME
• Multilevel Model Specification: NLME

Influence.ME: Tools for detecting influential cases in mixed models

• Introducing Influence.ME
• Influence.ME Overview
• Influence.ME Manual
• Influence.ME: Simple Analysis
• Specification of the intercept
• Influence.ME: Change-log

Some small functions I wrote

• Forward.lmer: Basic stepwise function for mixed effects in R
• Combining Output in a Single Table
• Select Nested Observations with Equal Number of Occurences
• Visualizing Missing Values

Books

• Book: Mixed Effects Models in S and S-Plus (Pinheiro & Bates, 2000)
• Book: An R and S-PLUS Companion to Applied Regression (Fox, 2002)
• Book: Data Analysis using Regression and Multilevel / Hierarchical Models (Gelman & Hill, 2007)
• Book: Introductory Statistics with R (Dalgaard, 2002)

Various

• Running R Twice on Apple Mac OS X
• Impressive R Speeds
• Text Editors for R: Textmate
• Text Editors for R: Internal Editor on OS X>