第三版前言
Again like the first two editions, this third edition of A Handbook of Statistical
Analyses using R is intended as a guide to data analysis with the R system for
statistical computing. In this edition we have added three new chapters, one
on quantile regression, one on missing values, and one on Bayesian inference.
There is also extra material in several chapters, for example, the chapter on
logistic regression now includes a description of a regression model for ordered
categorical response variables. And many chapters contain extra exercises and
more detailed explanation of the R code. Lastly every chapter now has a
penultimate section summarizing the results of the analyses carried out in
the chapter. A new version of the HSAUR package, now called HSAUR3
for obvious reasons, is available from the Comprehensive R Archive Network
(http://CRAN.R-project.org).
Many readers told us that they use the book as course material when
they teach introductory statistics courses. For some selected chapters, Sweave
sources of slides are now available in the HSAUR3 source package that can
be used as additional material in such courses.
We would like to thank Nora Fenske and Leonhard Held for providing feedback
on the new Chapters 12 and 18.