Introduction to Functional Data Analysis - Piotr Kokoszka, Matthew Reimherr

Introduction to Functional Data Analysis

Buch | Softcover
306 Seiten
2021
Chapman & Hall/CRC (Verlag)
978-1-032-09659-9 (ISBN)
57,35 inkl. MwSt
The book provides an introduction to functional data analysis (FDA), useful to students and researchers. FDA is now generally viewed as a fundamental subfield of statistics. FDA methods have been applied to science, business and engineering.
Introduction to Functional Data Analysis provides a concise textbook introduction to the field. It explains how to analyze functional data, both at exploratory and inferential levels. It also provides a systematic and accessible exposition of the methodology and the required mathematical framework.



The book can be used as textbook for a semester-long course on FDA for advanced undergraduate or MS statistics majors, as well as for MS and PhD students in other disciplines, including applied mathematics, environmental science, public health, medical research, geophysical sciences and economics. It can also be used for self-study and as a reference for researchers in those fields who wish to acquire solid understanding of FDA methodology and practical guidance for its implementation. Each chapter contains plentiful examples of relevant R code and theoretical and data analytic problems.



The material of the book can be roughly divided into four parts of approximately equal length: 1) basic concepts and techniques of FDA, 2) functional regression models, 3) sparse and dependent functional data, and 4) introduction to the Hilbert space framework of FDA. The book assumes advanced undergraduate background in calculus, linear algebra, distributional probability theory, foundations of statistical inference, and some familiarity with R programming. Other required statistics background is provided in scalar settings before the related functional concepts are developed. Most chapters end with references to more advanced research for those who wish to gain a more in-depth understanding of a specific topic.

Piotr Kokoszka is a professor of statistics at Colorado State University. His research interests include functional data analysis, with emphasis on dependent data structures, and applications to geosciences and finance. He is a coauthor of the monograph Inference for Functional Data with Applications (with L. Horváth). He is an associate editor of several journals, including Computational Statistics and Data Analysis, Journal of Multivariate Analysis, Journal of Time Series Analysis, and Scandinavian Journal of Statistics. Matthew Reimherr is an assistant professor of statistics at Pennsylvania State University. His research interests include functional data analysis, with emphasis on longitudinal studies and applications to genetics and public health. He is an associate editor of Statistical Modeling.

First steps in the analysis of functional data



Basis expansions



Sample mean and covariance



Principal component functions



Analysis of BOA stock returns



Diffusion tensor imaging



Problems



Further topics in exploratory FDA



Derivatives



Penalized smoothing



Curve alignment



Further reading



Problems



Mathematical framework for functional data



Square integrable functions



Random functions



Linear transformations



Scalar- on - function regression



Examples



Review of standard regression theory



Difficulties specific to functional regression



Estimation through a basis expansion



Estimation with a roughness penalty



Regression on functional principal components



Implementation in the refund package



Nonlinear scalar-on-function regression



Problems



Functional response models



Least squares estimation and application to angular motion



Penalized least squares estimation



Functional regressors



Penalized estimation in the refund package



Estimation based on functional principal components



Test of no effect



Verification of the validity of a functional linear model



Extensions and further reading



Problems



Functional generalized linear models



Background



Scalar-on-function GLM's



Functional response GLM



Implementation in the refund package



Application to DTI



Further reading



Problems



Sparse FDA



Introduction



Mean function estimation



Covariance function estimation



Sparse functional PCA



Sparse functional regression



Problems



Functional time series



Fundamental concepts of time series analysis



Functional autoregressive process



Forecasting with the Hyndman-Ullah method



Forecasting with multivariate predictors



Long-run covariance function



Testing stationarity of functional time series



Generation and estimation of the FAR(1) model using package fda



Conditions for the existence of the FAR(1) process



Further reading and other topics



Problems



Spatial functional data and models



Fundamental concepts of spatial statistics



Functional spatial fields



Functional kriging



Mean function estimation



Implementation in the R package geofd



Other topics and further reading



Problems



Elements of Hilbert space theory



Hilbert space



Projections and orthonormal sets



Linear operators



Basics of spectral theory



Tensors



Problems



Random functions



Random elements in metric spaces



Expectation and covariance in a Hilbert space



Gaussian functions and limit theorems



Functional principal components



Problems



Inference from a random sample



Consistency of sample mean and covariance

Erscheinungsdatum
Reihe/Serie Chapman & Hall/CRC Texts in Statistical Science
Sprache englisch
Maße 156 x 234 mm
Gewicht 570 g
Themenwelt Mathematik / Informatik Mathematik
Wirtschaft Volkswirtschaftslehre Ökonometrie
ISBN-10 1-032-09659-4 / 1032096594
ISBN-13 978-1-032-09659-9 / 9781032096599
Zustand Neuware
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