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base (version 3.4.0)

The R Base Package

Description

Base R functions.

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Version

Version

3.4.0

License

Part of R 3.4.0

Maintainer

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

Last Published

January 1st, 1970

Functions in base (3.4.0)

Matrix Diagonals

Choose a File Interactively

Extract File Information

Argument List of a Function

Multi-way Arrays

On-demand Loading of Packages

Solve an Upper or Lower Triangular System

Platform Specific Variables

User-supplied Random Number Generation

Random Number Generation

Partial String Matching

Character Translation and Casefolding

Copyrights of Files Used to Build R

Get Environment Variables

Get the Process ID of the R Session

Approximate String Matching (Fuzzy Matching)

Miscellaneous Mathematical Functions

Find Details of the Numerical and Monetary Representations

Arithmetic Operators

Version Information

Abbreviate Strings

Inhibit Interpretation/Conversion of Objects

Marking Objects as Deprecated

Read or Set the Declared Encodings for a Character Vector

Rounding of Numbers

Special Functions of Mathematics

Test if Two Objects are (Nearly) Equal

Object Attributes

Object Attribute Lists

Are All Values True?

Find All Names in an Expression

Manipulate File Paths

Bin a Numeric Vector

Call With Current Continuation

Report Capabilities of this Build of R

Expand a String with Respect to a Target Table

Character Vectors

Complex Numbers and Basic Functionality

Binding and Environment Locking, Active Bindings

Bitwise Logical Operations

Concatenate and Print

Combine R Objects by Rows or Columns

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

The Choleski Decomposition

Garbage Collection

Drop Redundant Extent Information

Drop Unused Levels from Factors

Is an Object Defined?

Create a Data Frame from All Combinations of Factor Variables

File Manipulation

Manipulaton of Directories and File Permissions

Formatting Using C-style Formats

Matrix Crossproduct

System Date and Time

Read and Write Data in DCF Format

Date-time Conversion Functions

Convert Object to Function

Assign a Value to a Name

Format Description Lists

Defunct Functions in Package

base-deprecated

Deprecated Functions in Package

Date Conversion Functions to and from Character

Environment Browser

Inverse from Choleski (or QR) Decomposition

Report Time Spent in Garbage Collection

Setup Collation by ICU

Test Objects for Exact Equality

Condition Handling and Recovery

Search for Masked Objects on the Search Path

Lagged Differences

Time Intervals / Differences

Double-Precision Vectors

Integer Vectors

Compute Factor Interactions

Loading/Attaching and Listing of Packages

Loading DLLs from Packages

List the Files in a Directory/Folder

From A List, Build or Add To an Environment

Convert a Data Frame to a Numeric Matrix

dataframeHelpers

Data Frame Auxiliary Functions

Calculate the Determinant of a Matrix

Make Character Strings Unique

Apply a Function to Multiple List or Vector Arguments

Does a Formal Argument have a Value?

Detach Objects from the Search Path

Execute a Function Call

Identity Function to Suppress Checking

Environment Access

The (Storage) Mode of an Object

Double Colon and Triple Colon Operators

Hooks for Namespace Events

Outer Product of Arrays

Parse Expressions

Raw Connections

Display Numbers in Hexadecimal

Convert Character Vector between Encodings

Is an Object a Language Object?

Test for an S4 object

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

Search Paths for Packages

Evaluate an (Unevaluated) Expression

Ascertain File Accessibility

Write an Object to a File or Recreate it

Foreign Function Interface

Apply a Function Over Values in an Environment

Access to and Manipulation of the Formal Arguments

Encode in a Common Format

Compute DLL for Native Interface Call

getDLLRegisteredRoutines

Reflectance Information for C/Fortran routines in a DLL

Finite, Infinite and NaN Numbers

Is an Object of Type (Primitive) Function?

Kronecker Products on Arrays

Localization Information

Compute table margin

Create a Matrix or a Vector

Argument Verification Using Partial Matching

Make Syntactically Valid Names

Convert to or from Raw Vectors

Extract or Replace Matched Substrings

Replicate Elements of Vectors and Lists

Read Data Values

Give Search Path for R Objects

Functions to Reposition Connections

Names and Symbols

The Names of an Object

Display Numbers in Octal

Function Exit Code

Find Interval Numbers or Indices

Force Evaluation of an Argument

In-memory Compression and Decompression

Profile the Usage of Cons Cells

The Number of Levels of a Factor

Generate Regular Sequences of Dates

Divide into Groups and Reassemble

Use C-style String Formatting Commands

References to Source Files and Code

Built-in Constants

Options Settings

Ordering Permutation

Pretty Breakpoints

Marking Objects as Defunct

InternalMethods

Internal Generic Functions

standardGeneric

Formal Method System -- Dispatching S4 Methods

Matrix Transpose

Cross Tabulation and Table Creation

Add or Remove a Top-Level Task Callback

taskCallbackManager

Create an R-level Task Callback Manager

Interrupting Execution of R

Call a function with Some Arguments Forced

Get DLLs Loaded in Current Session

getNativeSymbolInfo

Delete Files and Directories

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

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

Grouping Permutation

Is an Object Atomic or Recursive?

Is an Object of Single Precision Type?

The Null Object

Reserved Words in R

Return the R Home Directory

Partial String Matching

Print Matrices, Old-style

Running Time of R

Range of Values

Write Lines to a Connection

Auxiliary Function for Sorting and Ranking

Replace Values in a Vector

Reverse Elements

Lengths of List or Vector Elements

Levels Attributes

Reload Saved Datasets

Wait on Socket Connections

Solve a System of Equations

Does String Start or End With Another String?

Query or Set Aspects of the Locale

Argument Matching

Extract a Function Specified by Name

Merge Two Data Frames

Diagnostic Messages

Not Yet Implemented Functions and Unused Arguments

The Number of Rows/Columns of an Array

Wildcard Expansion on File Paths

Numeric Vectors

numeric_version

Numeric Versions

Find Zeros of a Real or Complex Polynomial

Convert Positions in the Search Path to Environments

Product of Vector Elements

Express Table Entries as Fraction of Marginal Table

Extract System and User Information

Vectorize a Scalar Function

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

Terminate an R Session

Transfer Binary Data To and From Connections

Transfer Character Strings To and From Connections

Read Text Lines from a Connection

Serialization Interface for Single Objects

Finalization of Objects

Scaling and Centering of Matrix-like Objects

Quote Strings for Use in OS Shells

showConnections

Display Connections

Regular Expressions as used in R

Get and Set Row Names for Data Frames

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

Stop Function Execution

Sweep out Array Summaries

Select One of a List of Alternatives

Set CPU and/or Elapsed Time Limits

Apply Functions Over Array Margins

Slice Indexes in an Array

Extract or Replace A Slot

Repeat the Elements of a Character Vector

Invoke a System Command

Find Names of R System Files

taskCallbackNames

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

Create Names for Temporary Files

Split the Elements of a Character Vector

Attribute Specification

Wrap Character Strings to Format Paragraphs

Coerce to a Data Frame

Coerce to an Environment Object

Internal Objects in Package

Convert Strings to Integers

Trim Character Strings to Specified Display Widths

Subsetting Vectors, Matrices and Data Frames

Returns the Names of All Built-in Objects

Apply a Function to a Data Frame Split by Factors

Form Row and Column Sums and Means

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

Substituting and Quoting Expressions

Invoke a System Command

Trace Copying of Objects

Transform an Object, for Example a Data Frame

Warning Messages

Convert an R Object to a Character String

Extract Parts of a POSIXt or Date Object

Which indices are TRUE?

R Project Contributors

Convert a Date or Date-Time Object to a Factor

Expression Deparsing

Options for Expression Deparsing

Dimensions of an Object

Print Warning Messages

Numerical Characteristics of the Machine

Scripting Language Interface

Convert Numeric to Factor

Dimnames of an Object

Spectral Decomposition of a Matrix

Rounding of Numbers

Listing of Packages

Construct Path to File

Display One or More Text Files

Function Definition

Common Higher-Order Functions in Functional Programming Languages

Translate Text Messages

Get or Set Working Directory

The Type of an Object

Extract Unique Elements

Pattern Matching for Raw Vectors

S3 Group Generic Functions

Identity Function

Conditional Element Selection

Compute or Estimate the Condition Number of a Matrix

Lazy Load a Database of R Objects

Length of an Object

Logical Vectors

Lower and Upper Triangular Part of a Matrix

Matrix Multiplication

Find Maximum Position in Matrix

Arithmetic Mean

Compute the Norm of a Matrix

Express File Paths in Canonical Form

Namespace Reflection Support

Top Level Environment

print.data.frame

Printing Data Frames

Default Printing

Run Length Encoding

Remove Objects from a Specified Environment

Relational Operators

Environment Variables

Extract or Replace Parts of an Object

Date-time Conversion Functions from Numeric Representations

Call an Internal Function

Round / Truncate Data-Time Objects

Create A Vector of Sequences

Simple Serialization Interface

Memory Limits in R

Memory Available for Data Storage

Utilities for Processing Rd Files

Send R Output to a File

Object Summaries

Singular Value Decomposition of a Matrix

Functions to Access the Function Call Stack

Parse and Evaluate Expressions from a File

Recursive Calling

Initialization at Start of an R Session

Operator Syntax and Precedence

Text Connections

Suspend Execution for a Time Interval

Get Current Date and Time

Are Some Values True?

Array Transposition

Assignment Operators

Access to and Manipulation of the Body of a Function

Partial substitution in expressions

Combine Values into a Vector or List

Attach Set of R Objects to Search Path

Row and Column Names

Extract Command Line Arguments

Cumulative Sums, Products, and Extremes

Debug a Function

Delay Evaluation

Text Representations of R Objects

Determine Duplicate Elements

Unevaluated Expressions

format(.) Information

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

Invoke a System Command, using a Shell

Format P Values

Torture Garbage Collector

Return the Value of a Named Object

Generate Factor Levels

Pattern Matching and Replacement

Is R Running Interactively?

Change the Print Mode to Invisible

Open a File or URL using Windows File Associations

Evaluate an Expression in a Data Environment

Miscellaneous Internal/Programming Utilities

Test if an Object is Not Sorted

Are we using R, rather than S?

Find Labels from Object

Apply a Function over a List or Vector

The R License Terms

The Number of Arguments to a Function

Lists -- Generic and Dotted Pairs

Count the Number of Characters (or Bytes or Width)

Namespace Internals

Loading and Unloading Name Spaces

Concatenate Strings

Expand File Paths

Push Text Back on to a Connection

The QR Decomposition of a Matrix

Recursively Apply a Function to a List

Read a Line from the Terminal

Random Samples and Permutations

Generate Regular Sequences of Times

Sequence Generation

Sorting or Ordering Vectors

Read R Code from a File, a Connection or Expressions

Ensure the Truth of R Expressions

Date-time Conversion Functions to and from Character

Substrings of a Character Vector

Sum of Vector Elements

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

Remove Leading/Trailing Whitespace

Try an Expression Allowing Error Recovery

Return both a Value and its Visibility

Write Data to a File

Logarithms and Exponentials

Logical Operators

Bessel Functions

Modern Interfaces to C/C++ code

Maxima and Minima

Foreign-internal

Internal Versions of the Foreign Function Interface

NumericConstants

Numeric Constants

Operators on the Date Class

Sys.setFileTime

Set or Unset Environment Variables

Extract.data.frame

Extract or Replace Parts of a Data Frame

Extract or Replace Parts of a Factor

Value of Last Evaluated Expression

Find Full Paths to Executables

Trigonometric Functions

Report Information on C Stack Size and Usage

DateTimeClasses

Date-Time Classes

Look Up a Primitive Function

Parentheses and Braces

Foreign Function Interface

Hyperbolic Functions