A Handbook of Statistical Analyses
Using R
Brian S. Everitt and Torsten Hothorn
CHAPTER 1
An Introduction to R
1.1 What is R?
The R system for statistical computing is an environment for data analysis
and graphics. The root of R is the S language, develop

Correlation and Simple Linear Regression
We are often interested in studying the relationship among variables to determine
whether they are associated with one another. When we think that changes in a
variable x explain, or maybe even cause, changes in a

Getting started with R
I. Using R
R is a programming language and software environment for statistical computing and
graphics. It is highly extensible and in recent years has become the most popular
language among statisticians for developing and introduc

INTRODUCTION TO SURVEY
RESEARCH DESIGN
Linda K. Owens
Assistant Director for Research Planning
Survey Research Laboratory
SRL Fall 2002 Seminar Series
http:/www.srl.uic.edu
WHY DO A SURVEY?
1. Uniqueness: gather information not available from
other source