R object-oriented programming : a practical guide to help you learn and understand the programming techniques necessary to exploit the full power R /

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Chapter 5: Character and String Operations; Basic string operations; Six focused tasks; Determine the length of a string; Location of a substring; Extracting or changing a substring; Transform case; Splitting strings; Creating formatted strings; Regular expressions; Summary; Chapter 6: Converting an...

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Detalles Bibliográficos
Clasificación:Libro Electrónico
Autor principal: Black, Kelly
Formato: Electrónico eBook
Idioma:Inglés
Publicado: Birmingham, UK : Packt Pub., 2014.
Colección:Community experience distilled.
Temas:
R (Computer program language)
Application software > Development.
Mathematical statistics > Data processing.
R (Langage de programmation)
Logiciels d'application > Développement.
Statistique mathématique > Informatique.
COMPUTERS > Programming > Open Source.
COMPUTERS > Software Development & Engineering > General.
COMPUTERS > Software Development & Engineering > Tools.
Application software > Development
Mathematical statistics > Data processing
Acceso en línea:Texto completo
Tabla de Contenidos:
  • Cover; Copyright; Credits; About the Author; About the Reviewers; www.PacktPub.com; Table of Contents; Preface; Chapter 1: Data Types; Assignment; The workspace; Discrete data types; Integer; Logical; Character; Factors; Continuous data types; Double; Complex; Special data types; Notes on as and is functions; Summary; Chapter 2: Organizing Data; Basic data structures; Vectors; Lists; Data frames; Tables; Matrices and arrays; Censoring data; Appending rows and columns; Operations on data structures; The apply commands; apply; lapply and sapply; tapply; mapply; Summary.
  • Chapter 3: Saving Data and Printing ResultsFile and directory information; Entering data; Entering data from the command line; Reading tables from files; CSV files; Fixed width files; Printing results and saving data; Saving a workspace; The cat command; The print, format, and paste commands; Primitive input/output; Network options; Opening a socket; Basic socket operations; Summary; Chapter 4: Calculating Probabilities and Random Numbers; Overview; Distribution functions; Cumulative distribution functions; Inverse cumulative distribution functions; Generating pseudorandom numbers; Sampling.
  • Break and next statementsFunctions; Defining a function; Arguments to functions; Scope; Executing scripts; Summary; Chapter 8: S3 Classes; Defining classes and methods; Defining objects and inheritance; Encapsulation; A final note; Summary; Chapter 9: S4 Classes; Introducing the Ant class; Defining an S4 class; Defining methods for an S4 class; Defining new methods; Polymorphism; Extending the existing methods; Inheritance; Miscellaneous notes; Summary; Chapter 10: Case Study
  • Course Grades; Overview; The Course class; The definition of the Course class ; Reading Grades from a file.
  • The assignment classesThe NumericGrade class; The LetterGrade class; Example
  • reading grades from a file; Defining indexing operations; Redefining existing functions; Redefining arithmetic operations; Summary; Chapter 11: Case Study
  • Simulation; The simulation classes; The Monte-Carlo class; Examples; Summary; Appendix: Package Management; Index.

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