Verfügbarkeit: The R student companion

The R student companion:

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Bibliographische Detailangaben
1. Verfasser:	Dennis, Brian (VerfasserIn)
Format:	Buch
Sprache:	English
Veröffentlicht:	Boca Raton [u.a.] CRC Press 2013
Schlagworte:	Datenverarbeitung R (Computer program language) Probabilities Mathematical statistics > Data processing MATHEMATICS / General MATHEMATICS / Probability & Statistics / General R > Programm
Online-Zugang:	Inhaltsverzeichnis
Beschreibung:	XVII, 339 S. Ill., graph. Darst.
ISBN:	9781439875407

Internformat

MARC


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Datensatz im Suchindex

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adam_text	Contents Preface ...................................................................................................................xiii Author ..................................................................................................................xvii 1. Introduction: Getting Started with R .........................................................1 R Tutorial ...........................................................................................................1 Vectors ...............................................................................................................4 Graphs ...............................................................................................................6 Real-World Example ........................................................................................8 Final Remarks .................................................................................................12 Computational Challenges ...........................................................................14 References ....................................................................................................... IS 2. R Scripts ..........................................................................................................14 Creating and Saving an R Script ..................................................................14 Running an R Script .......................................................................................21) Finding Errors in an R Script ........................................................................21 Sharpening Up Your Scripts with Comments ............................................24 Real-World Example ......................................................................................25 Final Remarks .................................................................................................30 Computational Challenges ...........................................................................36 Reference .........................................................................................................34 3. Functions ........................................................................................................41 Creating New Functions in R .......................................................................43 More about U ser- Do fined R Functions .......................................................44 Real-World Example ......................................................................................46 Final Remarks .................................................................................................48 Computational Challenges ...........................................................................44 Afternotes ........................................................................................................52 References .......................................................................................................53 4. Basic Graphs ..................................................................................................55 Real-World Example ......................................................................................55 Graphs or One Variable .................................................................................54 Stripchart..............................................................................................54 Histogram ............................................................................................. 6() Stem-and-Loaf Plot .............................................................................61 Boxplot ..................................................................................................62 Timeplot ................................................................................................63 V4 viii Contents Graphs of Two Variables ...............................................................................64 Scatterplot .............................................................................................65 Side-by-Side Boxplots .........................................................................66 Bar Graphs and Pie Charts ................................................................67 Bar Graphs and Pie Charts Using Data ............................................68 Final Remarks .................................................................................................71 Computational Challenges ...........................................................................74 Arternotes........................................................................................................75 5. Data Input and Output ................................................................................77 Data Frames in R ............................................................................................77 Final Remarks .................................................................................................86 Computational Challenges ...........................................................................88 Ařternotes ........................................................................................................89 6. Loops ...............................................................................................................91 Writing a For-Loop ....................................................................................92 Checking the Loop .........................................................................................93 OK, Mr. Fibonacci...So What? ......................................................................94 Real-World Example ......................................................................................95 Final Remarks ...............................................................................................100 Computational Challenges .........................................................................100 References .....................................................................................................102 7. Logic and Control .......................................................................................103 Logical Comparison Operators and Logical Vectors ..............................103 Boolean Operations .....................................................................................105 Missing Data .................................................................................................107 More about Indexes .....................................................................................108 Conditional Statements ...............................................................................110 Real-World Example ....................................................................................115 Final Remarks ...............................................................................................121 Computational Challenges .........................................................................125 Ařternotes ......................................................................................................126 Reference .......................................................................................................126 8. Quadratic Functions ...................................................................................127 Real-World Example ....................................................................................133 Final Remarks ...............................................................................................137 Computational Challenges .........................................................................140 References .....................................................................................................141 9. Trigonometric Functions ........................................................................... I43 Right Triangles .......................—..................................................................14^ Trigonometric Functions _____.................................................................. I44 Contents ix Right Triangles, Circles, and Radians .......................................................145 Properties of Trigonometric Functions .....................................................150 Polar Coordinates ........................................................................................152 Triangulation of Distances ..........................................................................154 Real-World Examples ..................................................................................155 Distances to Stars Near the Solar System ......................................155 Projectile Motion ...............................................................................156 Planetary Orbits .................................................................................158 Final Remarks ...............................................................................................159 Computational Challenges .........................................................................161 Afternotes......................................................................................................162 10. Exponential and Logarithmic Functions ...............................................163 Achieving Real Power .................................................................................163 The Special Number с ..................................................................................165 The Number e in Applications ...................................................................168 The Exponential Function ...........................................................................169 Exponential Growth ....................................................................................170 Logarithmic Functions ................................................................................172 Logarithmic Scales .......................................................................................175 Richter Scale .......................................................................................175 The pH Scale ......................................................................................176 Star Magnitude ..................................................................................176 Real-World Examples ..................................................................................178 Radioactive Decay .............................................................................178 Limit to Population Growth ............................................................181 Peak Oil ...............................................................................................184 Final Remarks ...............................................................................................187 Computational and Algebraic Challenges ...............................................189 References .....................................................................................................192 11. Matrix Arithmetic .......................................................................................193 Another Way to Multiply Vectors ..............................................................193 Matrix Multiplication ..................................................................................195 Matrix Addition and Subtraction ..............................................................198 Reading a Data File into a Matrix ..............................................................199 Real-World Example ....................................................................................200 Final Remarks ...............................................................................................203 Computational Challenges .........................................................................205 Afternote.......................................................................................................206 References .....................................................................................................206 12. Systems of Linear Equations ....................................................................207 Matrix Representation .................................................................................207 Matrix Inverse ..............................................................................................209 Inverse Matrices and Svstem Solutions in R ............................................211 Contents Real-World Examples ..................................................................................213 Old Faithful ........................................................................................213 AGalaxy Not So Far Away ..............................................................220 Final Remarks ...............................................................................................224 Computational Challenges .........................................................................226 Ařternotes ......................................................................................................228 References .....................................................................................................229 13. Advanced Graphs .......................................................................................231 Two-Dimensional Plots ...............................................................................231 Options for Styles of Symbols, Lines, Axes ..............................................232 Data Symbol Types ...........................................................................232 Connecting Line Types .....................................................................233 Plot Types ...........................................................................................233 Axis Limits .........................................................................................234 Tic Marks ............................................................................................234 Axis Labels .........................................................................................234 Suppressing Axes ..............................................................................234 Sizes of Symbols, Labels, Widths of Lines, Axes ..........................234 Other Customizations .................................................................................235 Adding Points ....................................................................................235 Adding Lines .....................................................................................235 Adding Text .......................................................................................236 Titles and Subtitles ............................................................................236 Legends ...............................................................................................238 New Graph Windows .......................................................................238 Global and Local ...............................................................................238 Multiple Panels .............................................................................................239 Scatterplot Matrices ..........................................................................240 Three-Dimensional Plots .............................................................................240 Color ..............................................................................................................245 Final Remarks ...............................................................................................246 Computational Challenges .........................................................................248 Reference .......................................................................................................249 14. Probability and Simulation ......................................................................251 Random Variables ........................................................................................251 Probability .....................................................................................................252 Probability Distributions of Counts ..........................................................255 Binomial Distribution .......................................................................256 Probabilit)· Distributions of Measurements .............................................260 Uniform Distribution ................................................................. ..260 Normal Distribution ............................................................... 2d2 Real-World Example ........................................................................ 2ь7 Computational Challenges ......................................................... ΐ Contents xi Afternotes......................................................................................................274 References .....................................................................................................274 15. Fitting Models to Data ...............................................................................275 Fittinga Quadratic Model ..........................................................................275 Multiple Predictor Variables .......................................................................278 Nonlinear Statistical Models ......................................................................281 Final Remarks ...............................................................................................288 Computational Challenges ......................................................................... 2M3 Afternotes.....................................................................................................245 References .....................................................................................................2% 16. Conclusion—It Doesn t Take a Rocket Scientist .......................................247 Real Solar System Example ........................................................................297 The Problem ..................................................................................................247 The Concept ..................................................................................................249 Changes in Velocities ...................................................................................294 Move the Earth .............................................................................................301 Getting Organized .......................................................................................302 Outline of R Script for Calculating the Trajectory of Earth ....................303 The R Script .............................................................. .....................................305 Computational Challenges .........................................................................307 Arternotes......................................................................................................304 Calculus and Conic Sections ............................................................304 F eynman s Lost Lecture ...................................................................304 Three-Body Problem .........................................................................304 Neptune ..............................................................................................310 Propagation of Error .........................................................................310 Apophis ..............................................................................................310 Orbit of Pluto Is Chaos .....................................................................311 The ws Cancel ....................................................................................311 Mercury Orbit Precession, and General Relativity ......................311 Measurement Units ...........................................................................311 References .....................................................................................................312 Appendix A: Installing R .................................................................................313 Appendix B: Getting Help ...............................................................................315 Appendix C: Common R Expressions ...........................................................317 Index .....................................................................................................................331
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spelling	Dennis, Brian Verfasser aut The R student companion Brian Dennis Boca Raton [u.a.] CRC Press 2013 XVII, 339 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Datenverarbeitung R (Computer program language) Probabilities Mathematical statistics Data processing MATHEMATICS / General bisacsh MATHEMATICS / Probability & Statistics / General bisacsh R Programm (DE-588)4705956-4 gnd rswk-swf R Programm (DE-588)4705956-4 s DE-604 Digitalisierung UB Bamberg - ADAM Catalogue Enrichment application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=025299687&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis
spellingShingle	Dennis, Brian The R student companion Datenverarbeitung R (Computer program language) Probabilities Mathematical statistics Data processing MATHEMATICS / General bisacsh MATHEMATICS / Probability & Statistics / General bisacsh R Programm (DE-588)4705956-4 gnd
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title	The R student companion
title_auth	The R student companion
title_exact_search	The R student companion
title_full	The R student companion Brian Dennis
title_fullStr	The R student companion Brian Dennis
title_full_unstemmed	The R student companion Brian Dennis
title_short	The R student companion
title_sort	the r student companion
topic	Datenverarbeitung R (Computer program language) Probabilities Mathematical statistics Data processing MATHEMATICS / General bisacsh MATHEMATICS / Probability & Statistics / General bisacsh R Programm (DE-588)4705956-4 gnd
topic_facet	Datenverarbeitung R (Computer program language) Probabilities Mathematical statistics Data processing MATHEMATICS / General MATHEMATICS / Probability & Statistics / General R Programm
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