Linear mixed-effects models (LMMs) are an important class of statistical models that can be used to analyze correlated data. Such data are encountered in a variety of fields including biostatistics, public health, psychometrics, educational measurement, and sociology. This book aims to support a wide range of uses for the models by applied researchers in those and other fields by providing state-of-the-art descriptions of the implementation of LMMs in R. To help readers to get familiar with the features of the models and the details of carrying them out in R, the book includes a review of the most important theoretical concepts of the models. The presentation connects theory, software and applications. It is built up incrementally, starting with a summary of the concepts underlying simpler classes of linear models like the classical regression model, and carrying them forward to LMMs. A similar step-by-step approach is used to describe the R tools for LMMs. All the classes oflinearmodels presented in the book are illustrated using real-life data. The book also introduces several novel R tools for LMMs, including new class of variance-covariance structure for random-effects, methods for influence diagnostics and for power calculations. They are included into an R package that should assist the readers in applying these and other methods presented in this text.
From the reviews:
Overall, this is very well-written book that covers both LMs and LMMs. Most of the R codes have been checked and work well. The R package nlmeU created by the authors provides great convenience for readers to explore the data in the textbook. Given the extensive applications of LM and LMM, the book should be very appealing to the readers of Technometrics.
Techonometrics, 56:1 2014
"This textbook is built as a step by step incremental description of a modelling tool used extensively in the analysis of hierarchical structured data sets. It is a balanced collection of concepts and examples from various research areas ... . In addition to a great collection of theory and examples, a state of the art description of LMMs in R, the authors developed the R package nlmeU which contains the data sets and presented R code, making this book a milestone in its field." (Irina Ioana Mohorianu, zbMATH, Vol. 1275, 2014)
"Linear Mixed-effects Models Using R byAndrzej Galecki and Tomasz Burzkowski, published by Springer is a book that covers in dept a lot of material on linear models. The book has clear instructions on how to program in R. ... This is a good reference book." (Cats and Dogs with Data, maryannedata.wordpress.com, August, 2013)
Overall, this is very well-written book that covers both LMs and LMMs. Most of the R codes have been checked and work well. The R package nlmeU created by the authors provides great convenience for readers to explore the data in the textbook. Given the extensive applications of LM and LMM, the book should be very appealing to the readers of Technometrics.
Techonometrics, 56:1 2014
"This textbook is built as a step by step incremental description of a modelling tool used extensively in the analysis of hierarchical structured data sets. It is a balanced collection of concepts and examples from various research areas ... . In addition to a great collection of theory and examples, a state of the art description of LMMs in R, the authors developed the R package nlmeU which contains the data sets and presented R code, making this book a milestone in its field." (Irina Ioana Mohorianu, zbMATH, Vol. 1275, 2014)
"Linear Mixed-effects Models Using R byAndrzej Galecki and Tomasz Burzkowski, published by Springer is a book that covers in dept a lot of material on linear models. The book has clear instructions on how to program in R. ... This is a good reference book." (Cats and Dogs with Data, maryannedata.wordpress.com, August, 2013)