Efficient R Programming

Index

Symbols

• &, && (AND operator), Logical AND and OR
• .csv files, Plain-Text Formats
• .Rdata, Native Binary Formats: Rdata or Rds?
• .Rds, Native Binary Formats: Rdata or Rds?
• .Renviron file, An Overview of R’s Startup Files, The .Renviron File-Example .Renviron file
  • location of, The Location of Startup Files
  • storing passwords in, Working with Databases
• .Rprofile, An Overview of R’s Startup Files, The .Rprofile File-Creating hidden environments with .Rprofile, The fortunes package
  • hidden environments with, Creating hidden environments with .Rprofile
  • location of, The Location of Startup Files
  • setting CRAN mirror, Setting the CRAN mirror
  • setting options, Setting options
  • useful functions, Useful functions
• ? prefix, Getting Help on Functions
• ?? symbol, Searching R for Topics
• |, || (OR operator), Logical AND and OR

A

• aggregation (see data aggregation)
• algorithmic efficiency, What Is Efficiency?
• AND (&, &&) operator, Logical AND and OR
• anyNA() function, is.na() and anyNA()
• apply function family, The Apply Family-Other resources
  • movies dataset example, Example: Movies Dataset
  • parallel versions of, Parallel Versions of Apply Functions
  • resources for, Other resources
  • type consistency and, Type Consistency
• apply() function, The Apply Family-Other resources, Row and Column Operations
• apropos(), Searching R for Topics
• argument passing, assignment vs., Assignment
• ASCII character set, Background: What Is a Byte?
• assertive.reflection package, Operating System
• autocompletion, Autocompletion-Autocompletion

B

• base R
  • converting factors ...