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Informationen zum Autor Martin Bader gained an MSc in geography at Saarland University in Germany and an MSc in biology at Waikato University, New Zealand. He earned a PhD in plant ecology at the University of Basel, Switzerland. After post-doctoral stints in Switzerland and Australia he joined the New Zealand Forest Research Institute as a forest ecologist and biostatistician. Following a senior lecturer appointment at Auckland University of Technology, New Zealand, he is now a professor of forest ecology at Linnaeus University, Sweden. He has taught undergraduate and postgraduate courses in statistics at universities and research institutes in various parts of the world. His research focuses on the physiological responses of plants to climate change and their biotic interactions. Sebastian Leuzinger did his first degree in marine biology at James Cook University, Australia, with a postgraduate degree in statistics (University of Neuchatel, Switzerland) and a PhD in plant ecology (University of Basel, Switzerland). He has done post-doctoral studies at ETH Zurich, Switzerland, in forest ecology and modelling before joining Auckland University of Technology where he is a full professor in ecology. He has taught undergraduate and postgraduate statistics for natural scientists for over a decade. His research is on global change impacts on plants, with a special interest in meta-analysis of global change experiments. Klappentext An accessible learning resource that develops data analysis skills for natural science students in an efficient style using the R programming language R-ticulate: A Beginner's Guide to Data Analysis for Natural Scientists is a compact, example-based, and user-friendly statistics textbook without unnecessary frills, but instead filled with engaging, relatable examples, practical tips, online exercises, resources, and references to extensions, all on a level that follows contemporary curricula taught in large parts of the world. The content structure is unique in the sense that statistical skills are introduced at the same time as software (programming) skills in R. This is by far the best way of teaching from the authors' experience. Readers of this introductory text will find: Explanations of statistical concepts in simple, easy-to-understand language A variety of approaches to problem solving using both base R and tidyverse Boxes dedicated to specific topics and margin text that summarizes key points A clearly outlined schedule organized into 12 chapters corresponding to the 12 semester weeks of most universities While at its core a traditional printed book, R-ticulate: A Beginner's Guide to Data Analysis for Natural Scientists comes with a wealth of online teaching material, making it an ideal and efficient reference for students who wish to gain a thorough understanding of the subject, as well as for instructors teaching related courses. Inhaltsverzeichnis Foreword ix Preface xi About the Companion Website xiii 1 Hypotheses, Variables, Data 1 1.1 Occam's Razor 2 1.2 Scientific Hypotheses 2 1.3 The Choice of a Software 3 1.3.1 First Steps in R 3 1.4 Variables 5 1.4.1 Variable Names and Values 5 1.4.2 Types of Variables 10 1.4.3 Predictor and Response Variables 11 1.5 Data Processing and Data Formats 12 1.5.1 The Long vs. the Wide Format 12 1.5.2 Choice of Variable, Dataset, and File Names 12 1.5.3 Adding, Removing, and Subsetting Variables and Data Frames 14 1.5.4 Aggregating Data 17 1.5.5 Working with Time and Strings 19 2 Measuring Variation 23 2.1 What Is Variation? 23 2.2 Treatment vs. Control 23 2.3 Systematic and Unsystematic Variation 24 2.4 The Signal-to-Noise Ratio 25 2.5 Measuring Variation Graphically 26 2.6 Measuring ...
