Learn R Programming

⚠️There's a newer version (3.6.2) of this package.Take me there.

base (version 3.3)

The R Base Package

Description

Base R functions.

Copy Link

Version

Version

3.3

License

Part of R @VERSION@

Maintainer

R-core R-core@R-project.org

Last Published

December 12th, 2019

Functions in base (3.3)

Inhibit Interpretation/Conversion of Objects

Arithmetic Operators

Modern Interfaces to C/C++ code

DateTimeClasses

Date-Time Classes

Bessel Functions

Built-in Constants

Relational Operators

Marking Objects as Defunct

Marking Objects as Deprecated

Read or Set the Declared Encodings for a Character Vector

Environment Variables

Report Information on C Stack Size and Usage

Extract or Replace Parts of a Factor

Extract or Replace Parts of an Object

Maxima and Minima

Extract.data.frame

Extract or Replace Parts of a Data Frame

Hyperbolic Functions

Foreign Function Interface

InternalMethods

Internal Generic Functions

Call an Internal Function

Date-time Conversion Functions from Numeric Representations

Value of Last Evaluated Expression

Foreign-internal

Internal Versions of the Foreign Function Interface

Logarithms and Exponentials

Logical Operators

Miscellaneous Mathematical Functions

Memory Available for Data Storage

The Null Object

NumericConstants

Numeric Constants

Not Available / Missing Values

Operators on the Date Class

Parentheses and Braces

Platform Specific Variables

Recursive Calling

Return the R Home Directory

Look Up a Primitive Function

Reserved Words in R

Utilities for Processing Rd Files

Get the Process ID of the R Session

Initialization at Start of an R Session

Rounding of Numbers

Random Number Generation

Operator Syntax and Precedence

Wildcard Expansion on File Paths

Sys.setFileTime

Find Details of the Numerical and Monetary Representations in the Current Locale

Read File Symbolic Links

Vectorize a Scalar Function

Find Full Paths to Executables

Abbreviate Strings

User-supplied Random Number Generation

Version Information

Test if Two Objects are (Nearly) Equal

Set or Unset Environment Variables

Extract System and User Information

Array Transposition

Argument List of a Function

Are Some Values True?

Are All Values True?

Approximate String Matching (Fuzzy Matching)

Multi-way Arrays

Apply Functions Over Array Margins

Get Current Date and Time

Get Environment Variables

Date-time Conversion Functions

Date Conversion Functions to and from Character

Coerce to an Environment Object

Suspend Execution for a Time Interval

Coerce to a Data Frame

Convert Object to Function

Assignment Operators

Object Attributes

Attach Set of R Objects to Search Path

Assign a Value to a Name

Memory Limits in R

Object Attribute Lists

On-demand Loading of Packages

Defunct Functions in Package base

Internal Objects in Package base

Find All Names in an Expression

base-deprecated

Deprecated Functions in Package base

Binding and Environment Locking, Active Bindings

Bin a Numeric Vector

The R Base Package

Partial substitution in expressions

Access to and Manipulation of the Body of a Function

Bitwise Logical Operations

Environment Browser

Apply a Function to a Data Frame Split by Factors

Returns the Names of All Built-in Objects

Report Capabilities of this Build of R

Call With Current Continuation

Expand a String with Respect to a Target Table

Combine R Objects by Rows or Columns

Character Translation and Casefolding

Character Vectors

Partial String Matching

Combine Values into a Vector or List

Warn About Extraneous Arguments in the "..." of Its Caller

The Choleski Decomposition

Inverse from Choleski (or QR) Decomposition

Functions to Retrieve Values Supplied by Calls to the Browser

Concatenate and Print

Query or Set a "comment" Attribute

Form Row and Column Sums and Means

Extract Command Line Arguments

Row and Column Names

Condition Handling and Recovery

Manipulate File Paths

Special Functions of Mathematics

Complex Numbers and Basic Functionality

Cumulative Sums, Products, and Extremes

Copyrights of Files Used to Build R

Functions to Manipulate Connections (Files, URLs, ...)

Search for Masked Objects on the Search Path

Convert a Data Frame to a Numeric Matrix

Convert Numeric to Factor

Matrix Crossproduct

R Project Contributors

dataframeHelpers

Data Frame Auxiliary Functions

Convert a Date or Date-Time Object to a Factor

Read and Write Data in DCF Format

System Date and Time

Calculate the Determinant of a Matrix

Expression Deparsing

Debug a Function

Detach Objects from the Search Path

Matrix Diagonals

Lists of Open/Active Graphics Devices

Delay Evaluation

Execute a Function Call

Dimnames of an Object

Identity Function to Suppress Checking

Lagged Differences

Options for Expression Deparsing

Dimensions of an Object

Drop Redundant Extent Information

Double-Precision Vectors

Text Representations of R Objects

Solve an Upper or Lower Triangular System

Environment Access

Determine Duplicate Elements

Spectral Decomposition of a Matrix

Evaluate an (Unevaluated) Expression

Write an Object to a File or Recreate it

Foreign Function Interface

Report Versions of Third-Party Software

Apply a Function Over Values in an Environment

Choose a File Interactively

Unevaluated Expressions

Construct Path to File

Display One or More Text Files

Extract File Information

File Manipulation

Manipulaton of Directories and File Permissions

Is an Object Defined?

Encode in a Common Format

Find Interval Numbers or Indices

format(.) Information

Format P Values

Call a function with Some Arguments Forced

Format Description Lists

Report Time Spent in Garbage Collection

Torture Garbage Collector

Force Evaluation of an Argument

Return the Value of a Named Object

Function Definition

Common Higher-Order Functions in Functional Programming Languages

Get DLLs Loaded in Current Session

Compute DLL for Native Interface Call

Garbage Collection

getDLLRegisteredRoutines

Reflectance Information for C/Fortran routines in a DLL

getNativeSymbolInfo

Obtain a Description of one or more Native (C/Fortran) Symbols

Ascertain File Accessibility

Access to and Manipulation of the Formal Arguments

Formatting Using C-style Formats

Get or Set Working Directory

Generate Factor Levels

Translate Text Messages

Pattern Matching and Replacement

S3 Group Generic Functions

Pattern Matching for Raw Vectors

(De)compress I/O Through Connections

Display Numbers in Hexadecimal

Convert Character Vector between Encodings

Conditional Element Selection

Grouping Permutation

Is R Running Interactively?

Change the Print Mode to Invisible

Compute Factor Interactions

Integer Vectors

Finite, Infinite and NaN Numbers

Identity Function

Is an Object of Single Precision Type?

Test if an Object is Not Sorted

Is an Object a Language Object?

Is an Object Atomic or Recursive?

‘Jitter’ (Add Noise) to Numbers

Test for an S4 object

Is an Object ‘internally classed’?

Test if a Matrix or other Object is Symmetric (Hermitian)

Are we using R, rather than S?

Localization Information

Compute or Estimate the Condition Number of a Matrix

Find Labels from Object

Apply a Function over a List or Vector

Kronecker Products on Arrays

Length of an Object

Levels Attributes

Lengths of List or Vector Elements

Report Version of libcurl

Is an Object of Type (Primitive) Function?

Test Objects for Exact Equality

Retrieve Headers from URLs

Lazy Load a Database of R Objects

Create a Data Frame from All Combinations of Factor Variables

Search Paths for Packages

Loading/Attaching and Listing of Packages

The R License Terms

Loading DLLs from Packages

From A List, Build or Add To an Environment

Lists -- Generic and Dotted Pairs

Reload Saved Datasets

Make Syntactically Valid Names

Logical Vectors

List the Files in a Directory/Folder

Create a Matrix or a Vector

Compute table margin

Query or Set Aspects of the Locale

Extract a Function Specified by Name

Argument Verification Using Partial Matching

Matrix Multiplication

Apply a Function to Multiple List or Vector Arguments

Profile the Usage of Cons Cells

In-memory Compression and Decompression

Argument Matching

Find Maximum Position in Matrix

Arithmetic Mean

The (Storage) Mode of an Object

Diagnostic Messages

The Names of an Object

The Number of Arguments to a Function

The Number of Levels of a Factor

Count the Number of Characters (or Bytes or Width)

Not Yet Implemented Functions and Unused Arguments

Double Colon and Triple Colon Operators

Namespace Internals

Compute the Norm of a Matrix

Class for ‘no quote’ Printing of Character Strings

Express File Paths in Canonical Form

Namespace Reflection Support

numeric_version

Numeric Versions

Merge Two Data Frames

Hooks for Namespace Events

Function Exit Code

Top Level Environment

Display Numbers in Octal

Outer Product of Arrays

Ordering Permutation

Options Settings

Numeric Vectors

Concatenate Strings

Convert Positions in the Search Path to Environments

Pretty Breakpoints

Find Zeros of a Real or Complex Polynomial

Does a Formal Argument have a Value?

Loading and Unloading Name Spaces

Report Configuration Options for PCRE

Print Matrices, Old-style

Product of Vector Elements

Running Time of R

print.data.frame

Printing Data Frames

Reconstruct the Q, R, or X Matrices from a QR Object

The QR Decomposition of a Matrix

Push Text Back on to a Connection

Terminate an R Session

Default Printing

Express Table Entries as Fraction of Marginal Table

Range of Values

The Number of Rows/Columns of an Array

Lower and Upper Triangular Part of a Matrix

Setup Collation by ICU

Partial String Matching

Recursively Apply a Function to a List

Names and Symbols

Parse Expressions

Raw Connections

Convert to or from Raw Vectors

Read Text Lines from a Connection

Transfer Binary Data To and From Connections

Read a Line from the Terminal

Set Environment Variables from a File

Regular Expressions as used in R

Extract or Replace Matched Substrings

Round / Truncate Data-Time Objects

Replicate Elements of Vectors and Lists

Transfer Character Strings To and From Connections

Give Column Sums of a Matrix or Data Frame, Based on a Grouping Variable

Replace Values in a Vector

Reverse Elements

Run Length Encoding

Random Samples and Permutations

Get and Set Row Names for Data Frames

Read Data Values

Give Search Path for R Objects

Generate Regular Sequences of Dates

Functions to Reposition Connections

Scaling and Centering of Matrix-like Objects

Create A Vector of Sequences

Serialization Interface for Single Objects

Set CPU and/or Elapsed Time Limits

Finalization of Objects

Simple Serialization Interface

Generate Regular Sequences of Times

Quote Strings for Use in OS Shells

Make Character Strings Unique

Slice Indexes in an Array

Solve a System of Equations

Sorting or Ordering Vectors

Extract or Replace A Slot

Read R Code from a File or a Connection

Send R Output to a File

Divide into Groups and Reassemble

References to source files

standardGeneric

Formal Method System -- Dispatching S4 Methods

showConnections

Display Connections

Ensure the Truth of R Expressions

Does String Start or End With Another String?

Wait on Socket Connections

Sequence Generation

Stop Function Execution

Split the Elements of a Character Vector

Date-time Conversion Functions to and from Character

Repeat the Elements of a Character Vector

Wrap Character Strings to Format Paragraphs

Convert Strings to Integers

Expand File Paths

Trim Character Strings to Specified Display Widths

Subsetting Vectors, Matrices and Data Frames

Singular Value Decomposition of a Matrix

Select One of a List of Alternatives

Use C-style String Formatting Commands

Sweep out Array Summaries

Functions to Access the Function Call Stack

Invoke a System Command

Find Names of R System Files

Sum of Vector Elements

Parse and Evaluate Expressions from a File

Substituting and Quoting Expressions

Substrings of a Character Vector

Invoke a System Command

Apply a Function Over a Ragged Array

Tabulation for Vectors

Add or Remove a Top-Level Task Callback

Text Connections

Create Names for Temporary Files

taskCallbackNames

Query the Names of the Current Internal Top-Level Task Callbacks

Transform an Object, for Example a Data Frame

taskCallbackManager

Create an R-level Task Callback Manager

Matrix Transpose

Remove Leading/Trailing Whitespace

Interactive Tracing and Debugging of Calls to a Function or Method

Convert an R Object to a Character String

Remove names or dimnames

Cross Tabulation and Table Creation

Delete Files and Directories

Try an Expression Allowing Error Recovery

Extract Unique Elements

Convert Integer Vectors to or from UTF-8-encoded Character Vectors

Get and Print Call Stacks

Warning Messages

The Type of an Object

Check if a Character Vector is Validly Encoded

Evaluate an Expression in a Data Environment

Where is the Min() or Max() or first TRUE or FALSE ?

Extract Parts of a POSIXt or Date Object

Print Warning Messages

Which indices are TRUE?

Object Summaries

Return both a value and its visibility

Remove Objects from a Specified Environment

Auxiliary Function for Sorting and Ranking

Write Data to a File

Numerical Characteristics of the Machine

Write Lines to a Connection

Attribute Specification

Functions to Get and Set Hooks for Load, Attach, Detach and Unload

Rounding of Numbers

Scripting Language Interface

Trace Copying of Objects

Miscellaneous Internal/Programming Utilities

Listing of Packages

Trigonometric Functions

Encode Character Vector as for Printing