# Generalized Additive Models

## An Introduction with R, Second Edition

## Simon N. Wood

# Generalized Additive Models

## An Introduction with R, Second Edition

## Simon N. Wood

## About This Book

The first edition of this book has established itself as one of the leading references on generalized additive models (GAMs), and the only book on the topic to be introductory in nature with a wealth of practical examples and software implementation. It is self-contained, providing the necessary background in linear models, linear mixed models, and generalized linear models (GLMs), before presenting a balanced treatment of the theory and applications of GAMs and related models.

The author bases his approach on a framework of penalized regression splines, and while firmly focused on the practical aspects of GAMs, discussions include fairly full explanations of the theory underlying the methods. Use of R software helps explain the theory and illustrates the practical application of the methodology. Each chapter contains an extensive set of exercises, with solutions in an appendix or in the book's R data package gamair, to enable use as a course text or for self-study.

## Information

*y*is the relative velocity of any two galaxies separated by distance

*x*, and

*Î˛*is âHubbleâs constantâ (in standard astrophysical notation

*y*âĄ

*v, x*âĄ

*d*and

*Î˛*âĄ

*H*

_{0}).

*Î˛*

^{â1}gives the approximate age of the universe, but

*Î˛*is unknown and must somehow be estimated from observations of

*y*and

*x*, made for a variety of galaxies at different distances from us.

*Î˛*is most consistent with the data? (ii) what range of

*Î˛*values is consistent with the data and (iii) are some particular, theoretically derived, values of

*Î˛*consistent with the data? Statistics is about trying to answer these three sorts of questions.

## Table of contents

*Generalized Additive Models*(2nd ed.). CRC Press. Retrieved from https://www.perlego.com/book/1507830/generalized-additive-models-an-introduction-with-r-second-edition-pdf (Original work published 2017)

*Generalized Additive Models*. 2nd ed. CRC Press. https://www.perlego.com/book/1507830/generalized-additive-models-an-introduction-with-r-second-edition-pdf.

*Generalized Additive Models*. 2nd edn. CRC Press. Available at: https://www.perlego.com/book/1507830/generalized-additive-models-an-introduction-with-r-second-edition-pdf (Accessed: 14 October 2022).

*Generalized Additive Models*. 2nd ed. CRC Press, 2017. Web. 14 Oct. 2022.