Learn R Programming

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

base (version 3.4.1)

The R Base Package

Description

Base R functions.

Copy Link

Version

Version

3.4.1

License

Part of R 3.4.1

Maintainer

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

Last Published

December 12th, 2019

Functions in base (3.4.1)

Relational Operators

Built-in Constants

Arithmetic Operators

Inhibit Interpretation/Conversion of Objects

Report Information on C Stack Size and Usage

DateTimeClasses

Date-Time Classes

Bessel Functions

Modern Interfaces to C/C++ code

Marking Objects as Deprecated

Extract.data.frame

Extract or Replace Parts of a Data Frame

Marking Objects as Defunct

Foreign Function Interface

Hyperbolic Functions

Read or Set the Declared Encodings for a Character Vector

InternalMethods

Internal Generic Functions

Maxima and Minima

Foreign-internal

Internal Versions of the Foreign Function Interface

Value of Last Evaluated Expression

‘Not Available’ / Missing Values

The Null Object

Reserved Words in R

Return the R Home Directory

Parentheses and Braces

Platform Specific Variables

Utilities for Processing Rd Files

Recursive Calling

Wildcard Expansion on File Paths

Extract System and User Information

Version Information

Abbreviate Strings

Get Environment Variables

Get the Process ID of the R Session

Find Full Paths to Executables

Miscellaneous Mathematical Functions

User-supplied Random Number Generation

Random Number Generation

Sys.setFileTime

Extract or Replace Parts of a Factor

Date-time Conversion Functions from Numeric Representations

Call an Internal Function

NumericConstants

Numeric Constants

Trigonometric Functions

Operators on the Date Class

Rounding of Numbers

Special Functions of Mathematics

Initialization at Start of an R Session

Operator Syntax and Precedence

Vectorize a Scalar Function

Test if Two Objects are (Nearly) Equal

Find All Names in an Expression

On-demand Loading of Packages

Solve an Upper or Lower Triangular System

Apply Functions Over Array Margins

Coerce to a Data Frame

Coerce to an Environment Object

Environment Variables

Extract or Replace Parts of an Object

Logarithms and Exponentials

Logical Operators

Set or Unset Environment Variables

Approximate String Matching (Fuzzy Matching)

Are All Values True?

Argument List of a Function

Manipulate File Paths

Bin a Numeric Vector

Environment Browser

Functions to Retrieve Values Supplied by Calls to the Browser

Internal Objects in Package base

The R Base Package

Returns the Names of All Built-in Objects

Apply a Function to a Data Frame Split by Factors

Partial String Matching

Character Translation and Casefolding

Condition Handling and Recovery

Multi-way Arrays

Object Attributes

Object Attribute Lists

Defunct Functions in Package base

Search for Masked Objects on the Search Path

Debug a Function

Memory Limits in R

Memory Available for Data Storage

Look Up a Primitive Function

base-deprecated

Deprecated Functions in Package base

Call With Current Continuation

Report Capabilities of this Build of R

Form Row and Column Sums and Means

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

R Project Contributors

System Date and Time

Delay Evaluation

Double-Precision Vectors

Write an Object to a File or Recreate it

Foreign Function Interface

Apply a Function Over Values in an Environment

File Manipulation

Manipulaton of Directories and File Permissions

Force Evaluation of an Argument

Date Conversion Functions to and from Character

Date-time Conversion Functions

Convert Object to Function

Read and Write Data in DCF Format

Lists of Open/Active Graphics Devices

Matrix Diagonals

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

Read File Symbolic Links

Suspend Execution for a Time Interval

Get Current Date and Time

Inverse from Choleski (or QR) Decomposition

Row and Column Names

Extract Command Line Arguments

Are Some Values True?

Array Transposition

Assignment Operators

Attach Set of R Objects to Search Path

Convert a Date or Date-Time Object to a Factor

Convert Numeric to Factor

Expression Deparsing

Options for Expression Deparsing

Drop Redundant Extent Information

Drop Unused Levels from Factors

Unevaluated Expressions

Report Versions of Third-Party Software

Assign a Value to a Name

Binding and Environment Locking, Active Bindings

Bitwise Logical Operations

Combine R Objects by Rows or Columns

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

The Choleski Decomposition

Copyrights of Files Used to Build R

Choose a File Interactively

Extract File Information

Access to and Manipulation of the Formal Arguments

Encode in a Common Format

Concatenate and Print

Compute DLL for Native Interface Call

getDLLRegisteredRoutines

Reflectance Information for C/Fortran routines in a DLL

Display Numbers in Hexadecimal

Convert Character Vector between Encodings

Execute a Function Call

Identity Function to Suppress Checking

Environment Access

Evaluate an (Unevaluated) Expression

Call a function with Some Arguments Forced

Garbage Collection

Report Time Spent in Garbage Collection

Setup Collation by ICU

Access to and Manipulation of the Body of a Function

Partial substitution in expressions

Combine Values into a Vector or List

Test Objects for Exact Equality

Identity Function

Conditional Element Selection

‘Jitter’ (Add Noise) to Numbers

Finite, Infinite and NaN Numbers

Is an Object of Type (Primitive) Function?

Test if an Object is Not Sorted

Are we using R, rather than S?

Construct Path to File

Display One or More Text Files

format(.) Information

Format P Values

Compute or Estimate the Condition Number of a Matrix

Find Labels from Object

Apply a Function over a List or Vector

Search Paths for Packages

Report Version of libcurl

Logical Vectors

Lower and Upper Triangular Part of a Matrix

Expand a String with Respect to a Target Table

Character Vectors

Query or Set a "comment" Attribute

Complex Numbers and Basic Functionality

Matrix Crossproduct

Convert a Data Frame to a Numeric Matrix

dataframeHelpers

Data Frame Auxiliary Functions

Lagged Differences

Get DLLs Loaded in Current Session

getNativeSymbolInfo

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

Grouping Permutation

Cumulative Sums, Products, and Extremes

Retrieve Headers from URLs

Calculate the Determinant of a Matrix

Argument Verification Using Partial Matching

Find Maximum Position in Matrix

Arithmetic Mean

Not Yet Implemented Functions and Unused Arguments

The Number of Rows/Columns of an Array

Options Settings

The R License Terms

Lists -- Generic and Dotted Pairs

Make Character Strings Unique

Apply a Function to Multiple List or Vector Arguments

Detach Objects from the Search Path

Dimensions of an Object

Dimnames of an Object

Is an Object Defined?

Create a Data Frame from All Combinations of Factor Variables

Ascertain File Accessibility

Function Definition

Common Higher-Order Functions in Functional Programming Languages

Translate Text Messages

Get or Set Working Directory

Pattern Matching for Raw Vectors

S3 Group Generic Functions

Integer Vectors

Compute Factor Interactions

Is an Object Atomic or Recursive?

Ordering Permutation

Report Configuration Options for PCRE

Partial String Matching

Print Matrices, Old-style

Running Time of R

Range of Values

Replace Values in a Vector

Is an Object of Single Precision Type?

Lazy Load a Database of R Objects

Length of an Object

List the Files in a Directory/Folder

(De)compress I/O Through Connections

Is R Running Interactively?

Change the Print Mode to Invisible

Reverse Elements

Get and Set Row Names for Data Frames

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

Set CPU and/or Elapsed Time Limits

From A List, Build or Add To an Environment

Compute table margin

Create a Matrix or a Vector

Does a Formal Argument have a Value?

Kronecker Products on Arrays

Time Intervals / Differences

Text Representations of R Objects

Determine Duplicate Elements

Spectral Decomposition of a Matrix

The (Storage) Mode of an Object

The Number of Levels of a Factor

Class for ‘no quote’ Printing of Character Strings

Namespace Internals

Encode Character Vector as for Printing

Find Interval Numbers or Indices

Format Description Lists

Localization Information

Loading/Attaching and Listing of Packages

Loading DLLs from Packages

Names and Symbols

The Names of an Object

The Number of Arguments to a Function

Reload Saved Datasets

Query or Set Aspects of the Locale

Argument Matching

Loading and Unloading Name Spaces

Concatenate Strings

Expand File Paths

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

Terminate an R Session

Read Text Lines from a Connection

Serialization Interface for Single Objects

Extract or Replace Matched Substrings

Count the Number of Characters (or Bytes or Width)

Namespace Reflection Support

Top Level Environment

Outer Product of Arrays

Extract a Function Specified by Name

In-memory Compression and Decompression

Profile the Usage of Cons Cells

Compute the Norm of a Matrix

Express File Paths in Canonical Form

Numeric Vectors

numeric_version

Numeric Versions

Pretty Breakpoints

Product of Vector Elements

Formatting Using C-style Formats

Torture Garbage Collector

Return the Value of a Named Object

Generate Factor Levels

Express Table Entries as Fraction of Marginal Table

Transfer Binary Data To and From Connections

Transfer Character Strings To and From Connections

Set Environment Variables from a File

Pattern Matching and Replacement

Is an Object a Language Object?

Is an Object ‘internally classed’?

Test for an S4 object

Parse Expressions

print.data.frame

Printing Data Frames

Default Printing

Recursively Apply a Function to a List

Finalization of Objects

Regular Expressions as used in R

Sorting or Ordering Vectors

Read R Code from a File, a Connection or Expressions

References to Source Files and Code

Random Samples and Permutations

Functions to Reposition Connections

Generate Regular Sequences of Dates

Replicate Elements of Vectors and Lists

Scaling and Centering of Matrix-like Objects

Quote Strings for Use in OS Shells

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

Lengths of List or Vector Elements

Levels Attributes

Make Syntactically Valid Names

Matrix Multiplication

Merge Two Data Frames

standardGeneric

Formal Method System -- Dispatching S4 Methods

Substrings of a Character Vector

Sum of Vector Elements

Invoke a System Command

Diagnostic Messages

Double Colon and Triple Colon Operators

Hooks for Namespace Events

Display Numbers in Octal

Divide into Groups and Reassemble

Repeat the Elements of a Character Vector

Split the Elements of a Character Vector

showConnections

Display Connections

Wait on Socket Connections

Solve a System of Equations

Does String Start or End With Another String?

Stop Function Execution

Attribute Specification

Wrap Character Strings to Format Paragraphs

Use C-style String Formatting Commands

Read a Line from the Terminal

Round / Truncate Data-Time Objects

Create A Vector of Sequences

Subsetting Vectors, Matrices and Data Frames

Substituting and Quoting Expressions

Matrix Transpose

Cross Tabulation and Table Creation

Text Connections

The Type of an Object

Extract Unique Elements

Find Names of R System Files

taskCallbackNames

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

Create Names for Temporary Files

Remove Leading/Trailing Whitespace

Simple Serialization Interface

Slice Indexes in an Array

Extract or Replace A Slot

Ensure the Truth of R Expressions

Try an Expression Allowing Error Recovery

Check if a Character Vector is Validly Encoded

Return both a Value and its Visibility

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

Invoke a System Command, using a Shell

Rounding of Numbers

Listing of Packages

Date-time Conversion Functions to and from Character

Sweep out Array Summaries

Select One of a List of Alternatives

Write Data to a File

Tabulation for Vectors

Apply a Function Over a Ragged Array

Interactive Tracing and Debugging of Calls to a Function or Method

Get and Print Call Stacks

Invoke a System Command

Convert an R Object to a Character String

Interrupting Execution of R

Delete Files and Directories

Extract Parts of a POSIXt or Date Object

Which indices are TRUE?

Remove names or dimnames

Warning Messages

Print Warning Messages

Numerical Characteristics of the Machine

Function Exit Code

Find Zeros of a Real or Complex Polynomial

Convert Positions in the Search Path to Environments

Push Text Back on to a Connection

The QR Decomposition of a Matrix

Raw Connections

Convert to or from Raw Vectors

Run Length Encoding

Scripting Language Interface

Miscellaneous Internal/Programming Utilities

Remove Objects from a Specified Environment

Read Data Values

Give Search Path for R Objects

Generate Regular Sequences of Times

Sequence Generation

Write Lines to a Connection

Auxiliary Function for Sorting and Ranking

Send R Output to a File

Convert Strings to Integers

Trim Character Strings to Specified Display Widths

Object Summaries

Singular Value Decomposition of a Matrix

Functions to Access the Function Call Stack

Parse and Evaluate Expressions from a File

Add or Remove a Top-Level Task Callback

taskCallbackManager

Create an R-level Task Callback Manager

Trace Copying of Objects

Transform an Object, for Example a Data Frame

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

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

Open a File or URL using Windows File Associations

Evaluate an Expression in a Data Environment