1st Edition

Flexible Regression and Smoothing
Using GAMLSS in R

ISBN 9781138197909
Published May 2, 2017 by Chapman and Hall/CRC
549 Pages 164 B/W Illustrations

USD $110.00

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Book Description

This book is about learning from data using the Generalized Additive Models for Location, Scale and Shape (GAMLSS). GAMLSS extends the Generalized Linear Models (GLMs) and Generalized Additive Models (GAMs) to accommodate large complex datasets, which are increasingly prevalent.

In particular, the GAMLSS statistical framework enables flexible regression and smoothing models to be fitted to the data. The GAMLSS model assumes that the response variable has any parametric (continuous, discrete or mixed) distribution which might be heavy- or light-tailed, and positively or negatively skewed. In addition, all the parameters of the distribution (location, scale, shape) can be modelled as linear or smooth functions of explanatory variables.

Key Features:

  • Provides a broad overview of flexible regression and smoothing techniques to learn from data whilst also focusing on the practical application of methodology using GAMLSS software in R.

  • Includes a comprehensive collection of real data examples, which reflect the range of problems addressed by GAMLSS models and provide a practical illustration of the process of using flexible GAMLSS models for statistical learning.

  • R code integrated into the text for ease of understanding and replication.

  • Supplemented by a website with code, data and extra materials.

This book aims to help readers understand how to learn from data encountered in many fields. It will be useful for practitioners and researchers who wish to understand and use the GAMLSS models to learn from data and also for students who wish to learn GAMLSS through practical examples.

Table of Contents

Part I Introduction to models and packages


Introduction to the gamlss packages

Part II The R implementation: algorithms and functions

The Algorithms

The gamlss() function

Methods for fitted gamlss objects

Part III Distributions

The gamlss.family of distributions

Finite mixture distributions

Part IV Additive terms

Linear parametric additive terms

Additive Smoothing Terms

Random effects

Part V Model selection and diagnostics

Model selection techniques


Part VI Applications

Centile Estimation

Further Applications

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Mikis D. Stasinopoulos, Robert A. Rigby, Gillian Z. Heller, Vlasios Voudouris, Fernanda De Bastiani

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