Foundations of linear and generalized linear models / / Alan Agresti

• Record Nr.: UNINA9910460533503321
• Autore: Agresti Alan
• Pubbl/distr/stampa: Hoboken, New Jersey : , : John Wiley & Sons Inc., , [2015]; ©2015
• ISBN: 1-118-73005-4; 1-118-73030-5
• Descrizione fisica: 1 online resource (472 p.)
• Collana: Wiley series in probability and statistics
• Disciplina: 003/.74
• Soggetti: Mathematical analysis - Foundations; Linear models (Statistics); Electronic books.
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: Foundations of Linear and Generalized Linear Models; Contents; Preface; Purpose of this book; Use as a textbook; Acknowledgments; 1 Introduction to Linear and Generalized Linear Models; 1.1 Components of a Generalized Linear Model; 1.1.1 Random Component of a GLM; 1.1.2 Linear Predictor of a GLM; 1.1.3 Link Function of a GLM; 1.1.4 A GLM with Identity Link Function is a "Linear Model"; 1.1.5 GLMs for Normal, Binomial, and Poisson Responses; 1.1.6 Advantages of GLMs versus Transforming the Data; 1.2 Quantitative/Qualitative Explanatory Variables and Interpreting Effects; 1.2.1 Quantitative and Qualitative Variables in Linear Predictors1.2.2 Interval, Nominal, and Ordinal Variables; 1.2.3 Interpreting Effects in Linear Models; 1.3 Model Matrices and Model Vector Spaces; 1.3.1 Model Matrices Induce Model Vector Spaces; 1.3.2 Dimension of Model Space Equals Rank of Model Matrix; 1.3.3 Example: The One-Way Layout; 1.4 Identifiability and Estimability; 1.4.1 Identifiability of GLM Model Parameters; 1.4.2 Estimability in Linear Models; 1.5 Example: Using Software to Fit a GLM; 1.5.1 Example: Male Satellites for Female Horseshoe Crabs; 1.5.2 Linear Model Using Weight to Predict Satellite Counts1.5.3 Comparing Mean Numbers of Satellites by Crab Color; Chapter Notes; ; Exercises; 2 Linear Models: Least Squares Theory; 2.1 Least Squares Model Fitting; 2.1.1 The Normal Equations and Least Squares Solution; 2.1.2 Hat Matrix and Moments of Estimators; 2.1.3 Bivariate Linear Model and Regression Toward the Mean; 2.1.4 Least Squares Solutions When X Does Not Have Full Rank; 2.1.5 Orthogonal Subspaces and Residuals; 2.1.6 Alternatives to Least Squares; 2.2 Projections of Data Onto Model Spaces; 2.2.1 Projection Matrices; 2.2.2 Projection Matrices for Linear Model Spaces2.2.3 Example: The Geometry of a Linear Model; 2.2.4 Orthogonal Columns and Parameter Orthogonality; 2.2.5 Pythagoras's Theorem Applications for Linear Models; 2.3 Linear Model Examples: Projections and SS Decompositions; 2.3.1 Example: Null Model; 2.3.2 Example: Model for the One-way Layout; 2.3.3 Sums of Squares and ANOVA Table for One-Way Layout; 2.3.4 Example: Model for Two-Way Layout with Randomized Block Design; 2.4 Summarizing Variability in a Linear Model; 2.4.1 Estimating the Error Variance for a Linear Model; 2.4.2 Sums of Squares: Error (SSE) and Regression (SSR)2.4.3 Effect on SSR and SSE of Adding Explanatory Variables; 2.4.4 Sequential and Partial Sums of Squares; 2.4.5 Uncorrelated Predictors: Sequential SS = Partial SS = SSR Component; 2.4.6 R-Squared and the Multiple Correlation; 2.5 Residuals, Leverage, and Influence; 2.5.1 Residuals and Fitted Values Are Uncorrelated; 2.5.2 Plots of Residuals; 2.5.3 Standardized and Studentized Residuals; 2.5.4 Leverages from Hat Matrix Measure Potential Influence; 2.5.5 Influential Points for Least Squares Fits; 2.5.6 Adjusting for Explanatory Variables by Regressing Residuals
• Sommario/riassunto: "This book presents an overview of the foundations and the key ideas and results of linear and generalized linear models under one cover. Written by a prolific academic, researcher, and textbook writer, Foundations of Linear and Generalized Linear Models is soon to become the gold standard by which all existing textbooks on the topic will be compared. While the emphasis is clearly and succinctly on theoretical underpinnings, applications in "R" are presented when they help to elucidate the content or promote practical model building. Each chapter contains approximately 15-20 exercises, primarily for readers to practice and extend the theory, but, also to assimilate the ideas by doing some data analysis. The carefully crafted models and examples convey basic concepts and do not get mired down in non-trivial considerations. An author-maintained web site includes, among other numerous pedagogical supplements, analyses that parallel the "R" routines from the book in SAS, SPSS and Stata"--

Human Migration to Space : Alternative Technological Approaches for Long-Term Adaptation to Extraterrestrial Environments / / by Elizabeth Song Lockard

• Record Nr.: UNINA9910299742703321
• Autore: Lockard Elizabeth Song
• Pubbl/distr/stampa: Cham : , : Springer International Publishing : , : Imprint : Springer, , 2014
• ISBN: 3-319-05930-0
• Edizione: [1st ed. 2014.]
• Descrizione fisica: 1 online resource (219 p.)
• Collana: Springer Theses, Recognizing Outstanding Ph.D. Research, , 2190-5053
• Disciplina: 629.442
• Soggetti: Aerospace engineering; Astronautics; Interior architecture; Space sciences; Aerospace Technology and Astronautics; Interior Architecture and Design; Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics)
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references.
• Nota di contenuto: Chapter 1: Introduction -- Chapter 2: Current Directions in Space Exploration -- Chapter 3: Shifting from Habitation to Adaptation in Space -- Chapter 4: Alternative technological Interfaces with the space Environment -- Chapter 5: The Case for an Integrative Approach -- Chapter 6: Futures of Human Evolution -- Chapter 7: Conclusion -- Bibliography.
• Sommario/riassunto: As humans embark upon the next phase of Space exploration—establishing human outposts in low-Earth orbit, on the Moon, and on Mars—the scope of human factors must expand beyond the meager requirements for short-term missions to Space to include issues of comfort and well-being necessary for long-term durations. However, to habitate—to dwell in a place—implies more than creature comforts in order to adapt. Human factors research must also include a ; phenomenological perspective – an understanding of how we experience the places we live in – in order for a community to be robust and to thrive. The first phase of migration will be an especially tenuous one requiring intensive technological intervention. The modes by which those technologies are implemented will have significant bearing on the process of human adaptation: the nature of the mediation can be either one of domination, subordination, avoidance, or integration. Ultimately, adaptation is best ensured if symbiotic processes of negotiation and cooperation between subject and environment are espoused over acts of conquest or acquiescence. These adaptive mechanisms will have wider implications for long-range human evolution. Migration to extraterrestrial environments will be unequivocally the most profound catalyst for evolution in the history of humankind—not only for the human species itself but also for the new environments we will eventually inhabit. At the same time, humans are also—via a new generation of bio-, nano-, and digital technologies—in the position to consciously and willfully direct evolution. Technology has always been transformative, but in the not-so-distant future, humans will soon possess the capacity for radical re-invention in almost any way conceivable.