Learn R Programming

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

base (version 3.5.0)

The R Base Package

Description

Base R functions.

Copy Link

Version

Version

3.5.0

License

Part of R 3.5.0

Maintainer

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

Last Published

December 12th, 2019

Functions in base (3.5.0)

Built-in Constants

Bessel Functions

Modern Interfaces to C/C++ code

Marking Objects as Defunct

Foreign Function Interface

Hyperbolic Functions

Marking Objects as Deprecated

Read or Set the Declared Encodings for a Character Vector

InternalMethods

Internal Generic Functions

DateTimeClasses

Date-Time Classes

Memory Limits in R

Report Information on C Stack Size and Usage

Utilities for Processing Rd Files

Memory Available for Data Storage

Recursive Calling

Miscellaneous Mathematical Functions

Initialization at Start of an R Session

Operator Syntax and Precedence

Relational Operators

User-supplied Random Number Generation

Random Number Generation

Environment Variables

Find Full Paths to Executables

Trigonometric Functions

Get Environment Variables

Extract or Replace Parts of an Object

Get the Process ID of the R Session

Date-time Conversion Functions from Numeric Representations

Extract.data.frame

Extract or Replace Parts of a Data Frame

Call an Internal Function

Version Information

Abbreviate Strings

Extract or Replace Parts of a Factor

Logarithms and Exponentials

‘Not Available’ / Missing Values

The Null Object

Test if Two Objects are (Nearly) Equal

Argument List of a Function

Logical Operators

Look Up a Primitive Function

Find All Names in an Expression

Arithmetic Operators

Inhibit Interpretation/Conversion of Objects

Object Attributes

Returns the Names of All Built-in Objects

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

Object Attribute Lists

Read File Symbolic Links

Multi-way Arrays

Approximate String Matching (Fuzzy Matching)

Access to and Manipulation of the Body of a Function

NumericConstants

Numeric Constants

Operators on the Date Class

Assignment Operators

Attach Set of R Objects to Search Path

Rounding of Numbers

Defunct Functions in Package base

Apply a Function to a Data Frame Split by Factors

Special Functions of Mathematics

Partial substitution in expressions

Are All Values True?

Sys.setFileTime

Row and Column Names

Date Conversion Functions to and from Character

base-deprecated

Deprecated Functions in Package base

Date-time Conversion Functions

Call With Current Continuation

Convert Object to Function

Maxima and Minima

Foreign-internal

Internal Versions of the Foreign Function Interface

Dimnames of an Object

Value of Last Evaluated Expression

Set or Unset Environment Variables

Form Row and Column Sums and Means

Assign a Value to a Name

Internal Objects in Package base

Convert Numeric to Factor

Parentheses and Braces

Platform Specific Variables

Return the R Home Directory

Reserved Words in R

Report Capabilities of this Build of R

The R Base Package

Partial String Matching

Vectorize a Scalar Function

Inverse from Choleski (or QR) Decomposition

Time Intervals / Differences

Debug a Function

Matrix Crossproduct

Combine Values into a Vector or List

Apply Functions Over Array Margins

Retrieve Headers from URLs

On-demand Loading of Packages

Solve an Upper or Lower Triangular System

Manipulate File Paths

Extract Command Line Arguments

Lists -- Generic and Dotted Pairs

Bin a Numeric Vector

Character Vectors

Spectral Decomposition of a Matrix

Search for Masked Objects on the Search Path

Wildcard Expansion on File Paths

Extract System and User Information

Lagged Differences

Character Translation and Casefolding

Condition Handling and Recovery

Double-Precision Vectors

Convert a Date or Date-Time Object to a Factor

Concatenate and Print

Execute a Function Call

Combine R Objects by Rows or Columns

Expression Deparsing

Cumulative Sums, Products, and Extremes

Copyrights of Files Used to Build R

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

Determine Duplicate Elements

Foreign Function Interface

Drop Unused Levels from Factors

Options for Expression Deparsing

Garbage Collection

Ascertain File Accessibility

Is R Running Interactively?

Unevaluated Expressions

Suspend Execution for a Time Interval

…, ..1, etc used in Functions

Dimensions of an Object

Expand a String with Respect to a Target Table

System Date and Time

Get Current Date and Time

Detach Objects from the Search Path

Text Representations of R Objects

format(.) Information

R Project Contributors

Read and Write Data in DCF Format

Are Some Values True?

Call a function with Some Arguments Forced

Create a Matrix or a Vector

Array Transposition

Choose a File Interactively

Formatting Using C-style Formats

Calculate the Determinant of a Matrix

Encode in a Common Format

Create a Data Frame from All Combinations of Factor Variables

Display Numbers in Hexadecimal

Delay Evaluation

getDLLRegisteredRoutines

Reflectance Information for C/Fortran routines in a DLL

S3 Group Generic Functions

Manipulation of Directories and File Permissions

Common Higher-Order Functions in Functional Programming Languages

Grouping Permutation

Apply a Function Over Values in an Environment

Evaluate an (Unevaluated) Expression

Convert Strings to Integers

Reload Saved Datasets

Compute Factor Interactions

Kronecker Products on Arrays

Coerce to a Data Frame

Report Versions of Third-Party Software

Compute or Estimate the Condition Number of a Matrix

Torture Garbage Collector

Is an Object Defined?

Find Interval Numbers or Indices

Pattern Matching and Replacement

Function Definition

Access to and Manipulation of the Formal Arguments

Localization Information

Lengths of List or Vector Elements

Setup Collation by ICU

Identity Function to Suppress Checking

Coerce to an Environment Object

Report Time Spent in Garbage Collection

Test for an S4 object

Display One or More Text Files

Force Evaluation of an Argument

Binding and Environment Locking, Active Bindings

getNativeSymbolInfo

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

File Manipulation

Find Labels from Object

Pattern Matching for Raw Vectors

Get DLLs Loaded in Current Session

From A List, Build or Add To an Environment

Convert Character Vector between Encodings

Pretty Breakpoints

Test Objects for Exact Equality

Bitwise Logical Operations

Lazy Load a Database of R Objects

Test if an Object is Not Sorted

Lower and Upper Triangular Part of a Matrix

Profile the Usage of Cons Cells

Namespace Reflection Support

Identity Function

Is an Object of Single Precision Type?

Loading and Unloading Name Spaces

Is an Object of Type (Primitive) Function?

(De)compress I/O Through Connections

Merge Two Data Frames

Is an Object a Language Object?

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

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

Diagnostic Messages

Default Printing

The Names of an Object

Search Paths for Packages

Translate Text Messages

Apply a Function over a List or Vector

In-memory Compression and Decompression

The Choleski Decomposition

Read Text Lines from a Connection

Matrix Diagonals

Length of an Object

‘Jitter’ (Add Noise) to Numbers

Environment Browser

Ordering Permutation

Change the Print Mode to Invisible

Functions to Retrieve Values Supplied by Calls to the Browser

Finite, Infinite and NaN Numbers

Are we using R, rather than S?

Convert a Data Frame to a Numeric Matrix

Function Exit Code

Levels Attributes

The Number of Arguments to a Function

Environment Access

Matrix Multiplication

Convert Positions in the Search Path to Environments

Make Syntactically Valid Names

List the Files in a Directory/Folder

Argument Matching

Complex Numbers and Basic Functionality

Argument Verification Using Partial Matching

Extract a Function Specified by Name

Query or Set a "comment" Attribute

Send R Output to a File

Replicate Elements of Vectors and Lists

Does a Formal Argument have a Value?

Running Time of R

Write an Object to a File or Recreate it

Generate Factor Levels

Drop Redundant Extent Information

dataframeHelpers

Data Frame Auxiliary Functions

Logical Vectors

Query or Set Aspects of the Locale

Outer Product of Arrays

Count the Number of Characters (or Bytes or Width)

Lists of Open/Active Graphics Devices

Compute the Norm of a Matrix

Arithmetic Mean

Make Character Strings Unique

The (Storage) Mode of an Object

Convert an R Object to a Character String

Top Level Environment

Class for ‘no quote’ Printing of Character Strings

Raw Connections

The Number of Levels of a Factor

Conditional Element Selection

Concatenate Strings

Numeric Vectors

Names and Symbols

Print Matrices, Old-style

Get or Set Working Directory

Encode Character Vector as for Printing

Replace Values in a Vector

Format P Values

Options Settings

Construct Path to File

The Number of Rows/Columns of an Array

Finalization of Objects

Namespace Internals

Parse Expressions

Extract File Information

Hooks for Namespace Events

Remove Objects from a Specified Environment

Transfer Character Strings To and From Connections

The QR Decomposition of a Matrix

print.data.frame

Printing Data Frames

Wrap Character Strings to Format Paragraphs

Scaling and Centering of Matrix-like Objects

Divide into Groups and Reassemble

Serialization Interface for Single Objects

Read a Line from the Terminal

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

Give Search Path for R Objects

Stop Function Execution

Double Colon and Triple Colon Operators

Slice Indexes in an Array

Return the Value of a Named Object

Terminate an R Session

Text Connections

Functions to Access the Function Call Stack

Read R Code from a File, a Connection or Expressions

Range of Values

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

Singular Value Decomposition of a Matrix

Integer Vectors

Format Description Lists

Get and Set Row Names for Data Frames

Display Numbers in Octal

Quote Strings for Use in OS Shells

Expand File Paths

Set Environment Variables from a File

Date-time Conversion Functions to and from Character

Compute DLL for Native Interface Call

Product of Vector Elements

Report Configuration Options for PCRE

Convert to or from Raw Vectors

Functions to Reposition Connections

Extract or Replace A Slot

Read Data Values

Substrings of a Character Vector

Repeat the Elements of a Character Vector

Set CPU and/or Elapsed Time Limits

Regular Expressions as used in R

Transfer Binary Data To and From Connections

Substituting and Quoting Expressions

Invoke a System Command

Ensure the Truth of R Expressions

Find Maximum Position in Matrix

Select One of a List of Alternatives

Which indices are TRUE?

Round / Truncate Data-Time Objects

Simple Serialization Interface

Evaluate an Expression in a Data Environment

Transform an Object, for Example a Data Frame

Use C-style String Formatting Commands

Extract or Replace Matched Substrings

taskCallbackNames

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

Wait on Socket Connections

Sweep out Array Summaries

Subsetting Vectors, Matrices and Data Frames

Loading/Attaching and Listing of Packages

Is an Object ‘internally classed’?

Matrix Transpose

Report Version of libcurl

taskCallbackManager

Create an R-level Task Callback Manager

Create A Vector of Sequences

Get and Print Call Stacks

Is an Object Atomic or Recursive?

References to Source Files and Code

Extract Parts of a POSIXt or Date Object

The R License Terms

Split the Elements of a Character Vector

Sequence Generation

showConnections

Display Connections

Remove Leading/Trailing Whitespace

Trace Copying of Objects

Tabulation for Vectors

Check if a Character Vector is Validly Encoded

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

Listing of Packages

Sum of Vector Elements

Rounding of Numbers

Create Names for Temporary Files

Numerical Characteristics of the Machine

Object Summaries

Loading DLLs from Packages

Try an Expression Allowing Error Recovery

Cross Tabulation and Table Creation

Compute table margin

Find Names of R System Files

Apply a Function to Multiple List or Vector Arguments

Express File Paths in Canonical Form

Interactive Tracing and Debugging of Calls to a Function or Method

Write Lines to a Connection

Return both a Value and its Visibility

Auxiliary Function for Sorting and Ranking

Extract Unique Elements

Remove names or dimnames

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

The Type of an Object

Not Yet Implemented Functions and Unused Arguments

Recursively Apply a Function to a List

Write Data to a File

Partial String Matching

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

numeric_version

Numeric Versions

Scripting Language Interface

Express Table Entries as Fraction of Marginal Table

Find Zeros of a Real or Complex Polynomial

Random Samples and Permutations

Generate Regular Sequences of Times

Push Text Back on to a Connection

Run Length Encoding

Reverse Elements

Apply a Function Over a Ragged Array

Parse and Evaluate Expressions from a File

Generate Regular Sequences of Dates

Solve a System of Equations

standardGeneric

Formal Method System -- Dispatching S4 Methods

Sorting or Ordering Vectors

Attribute Specification

Print Warning Messages

Trim Character Strings to Specified Display Widths

Invoke a System Command

Does String Start or End With Another String?

Add or Remove a Top-Level Task Callback

Delete Files and Directories

Miscellaneous Internal/Programming Utilities

Warning Messages