base v3.4.1

The R Base Package

Base R functions.

Functions in base

Name	Description
Colon	Colon Operator
Comparison	Relational Operators
Constants	Built-in Constants
Control	Control Flow
Arithmetic	Arithmetic Operators
AsIs	Inhibit Interpretation/Conversion of Objects
Cstack_info	Report Information on C Stack Size and Usage
DateTimeClasses	Date-Time Classes
Bessel	Bessel Functions
CallExternal	Modern Interfaces to C/C++ code
Deprecated	Marking Objects as Deprecated
Extract.data.frame	Extract or Replace Parts of a Data Frame
Dates	Date Class
Defunct	Marking Objects as Defunct
Foreign	Foreign Function Interface
Hyperbolic	Hyperbolic Functions
Encoding	Read or Set the Declared Encodings for a Character Vector
InternalMethods	Internal Generic Functions
La_library	LAPACK Library
LongVectors	Long Vectors
Extremes	Maxima and Minima
Foreign-internal	Internal Versions of the Foreign Function Interface
La_version	LAPACK Version
Last.value	Value of Last Evaluated Expression
NA	‘Not Available’ / Missing Values
NULL	The Null Object
Reserved	Reserved Words in R
Rhome	Return the R Home Directory
Paren	Parentheses and Braces
.Platform	Platform Specific Variables
RdUtils	Utilities for Processing Rd Files
Recall	Recursive Calling
Sys.glob	Wildcard Expansion on File Paths
Sys.info	Extract System and User Information
R.Version	Version Information
abbreviate	Abbreviate Strings
Sys.getenv	Get Environment Variables
Sys.getpid	Get the Process ID of the R Session
Sys.which	Find Full Paths to Executables
MathFun	Miscellaneous Mathematical Functions
Random.user	User-supplied Random Number Generation
Random	Random Number Generation
Sys.setFileTime	Set File Time
Extract.factor	Extract or Replace Parts of a Factor
ISOdatetime	Date-time Conversion Functions from Numeric Representations
Internal	Call an Internal Function
NumericConstants	Numeric Constants
Trig	Trigonometric Functions
Ops.Date	Operators on the Date Class
Round	Rounding of Numbers
Special	Special Functions of Mathematics
Startup	Initialization at Start of an R Session
Syntax	Operator Syntax and Precedence
UseMethod	Class Methods
Vectorize	Vectorize a Scalar Function
all.equal	Test if Two Objects are (Nearly) Equal
all.names	Find All Names in an Expression
autoload	On-demand Loading of Packages
backsolve	Solve an Upper or Lower Triangular System
append	Vector Merging
apply	Apply Functions Over Array Margins
as.data.frame	Coerce to a Data Frame
as.environment	Coerce to an Environment Object
EnvVar	Environment Variables
Extract	Extract or Replace Parts of an Object
log	Logarithms and Exponentials
Logic	Logical Operators
Sys.setenv	Set or Unset Environment Variables
agrep	Approximate String Matching (Fuzzy Matching)
all	Are All Values True?
args	Argument List of a Function
basename	Manipulate File Paths
.bincode	Bin a Numeric Vector
browser	Environment Browser
browserText	Functions to Retrieve Values Supplied by Calls to the Browser
base-internal	Internal Objects in Package base
base-package	The R Base Package
builtins	Returns the Names of All Built-in Objects
by	Apply a Function to a Data Frame Split by Factors
charmatch	Partial String Matching
chartr	Character Translation and Casefolding
conditions	Condition Handling and Recovery
array	Multi-way Arrays
attr	Object Attributes
attributes	Object Attribute Lists
base-defunct	Defunct Functions in Package base
conflicts	Search for Masked Objects on the Search Path
data.class	Object Classes
data.frame	Data Frames
debug	Debug a Function
Memory-limits	Memory Limits in R
Memory	Memory Available for Data Storage
Primitive	Look Up a Primitive Function
Quotes	Quotes
base-deprecated	Deprecated Functions in Package base
callCC	Call With Current Continuation
capabilities	Report Capabilities of this Build of R
col	Column Indexes
colSums	Form Row and Column Sums and Means
connections	Functions to Manipulate Connections (Files, URLs, ...)
contributors	R Project Contributors
date	System Date and Time
delayedAssign	Delay Evaluation
double	Double-Precision Vectors
dput	Write an Object to a File or Recreate it
dyn.load	Foreign Function Interface
eapply	Apply a Function Over Values in an Environment
files	File Manipulation
files2	Manipulaton of Directories and File Permissions
force	Force Evaluation of an Argument
as.Date	Date Conversion Functions to and from Character
as.POSIX*	Date-time Conversion Functions
as.function	Convert Object to Function
dcf	Read and Write Data in DCF Format
.Device	Lists of Open/Active Graphics Devices
diag	Matrix Diagonals
Sys.localeconv	Find Details of the Numerical and Monetary Representations in the Current Locale
Sys.readlink	Read File Symbolic Links
Sys.sleep	Suspend Execution for a Time Interval
Sys.time	Get Current Date and Time
chol2inv	Inverse from Choleski (or QR) Decomposition
class	Object Classes
row+colnames	Row and Column Names
commandArgs	Extract Command Line Arguments
any	Are Some Values True?
aperm	Array Transposition
assignOps	Assignment Operators
attach	Attach Set of R Objects to Search Path
cut.POSIXt	Convert a Date or Date-Time Object to a Factor
cut	Convert Numeric to Factor
deparse	Expression Deparsing
deparseOpts	Options for Expression Deparsing
drop	Drop Redundant Extent Information
droplevels	Drop Unused Levels from Factors
expression	Unevaluated Expressions
extSoftVersion	Report Versions of Third-Party Software
assign	Assign a Value to a Name
bindenv	Binding and Environment Locking, Active Bindings
bitwise	Bitwise Logical Operations
cbind	Combine R Objects by Rows or Columns
chkDots	Warn About Extraneous Arguments in the "..." of Its Caller
chol	The Choleski Decomposition
copyright	Copyrights of Files Used to Build R
file.choose	Choose a File Interactively
file.info	Extract File Information
formals	Access to and Manipulation of the Formal Arguments
format	Encode in a Common Format
cat	Concatenate and Print
getCallingDLL	Compute DLL for Native Interface Call
getDLLRegisteredRoutines	Reflectance Information for C/Fortran routines in a DLL
hexmode	Display Numbers in Hexadecimal
iconv	Convert Character Vector between Encodings
do.call	Execute a Function Call
dontCheck	Identity Function to Suppress Checking
environment	Environment Access
eval	Evaluate an (Unevaluated) Expression
forceAndCall	Call a function with Some Arguments Forced
gc	Garbage Collection
gc.time	Report Time Spent in Garbage Collection
icuSetCollate	Setup Collation by ICU
body	Access to and Manipulation of the Body of a Function
bquote	Partial substitution in expressions
c	Combine Values into a Vector or List
call	Function Calls
identical	Test Objects for Exact Equality
identity	Identity Function
ifelse	Conditional Element Selection
jitter	‘Jitter’ (Add Noise) to Numbers
is.finite	Finite, Infinite and NaN Numbers
is.function	Is an Object of Type (Primitive) Function?
is.unsorted	Test if an Object is Not Sorted
is.R	Are we using R, rather than S?
file.path	Construct Path to File
file.show	Display One or More Text Files
format.info	format(.) Information
format.pval	Format P Values
kappa	Compute or Estimate the Condition Number of a Matrix
labels	Find Labels from Object
lapply	Apply a Function over a List or Vector
libPaths	Search Paths for Packages
libcurlVersion	Report Version of libcurl
logical	Logical Vectors
lower.tri	Lower and Upper Triangular Part of a Matrix
char.expand	Expand a String with Respect to a Target Table
character	Character Vectors
comment	Query or Set a "comment" Attribute
complex	Complex Numbers and Basic Functionality
crossprod	Matrix Crossproduct
data.matrix	Convert a Data Frame to a Numeric Matrix
dataframeHelpers	Data Frame Auxiliary Functions
diff	Lagged Differences
getLoadedDLLs	Get DLLs Loaded in Current Session
getNativeSymbolInfo	Obtain a Description of one or more Native (C/Fortran) Symbols
grouping	Grouping Permutation
cumsum	Cumulative Sums, Products, and Extremes
curlGetHeaders	Retrieve Headers from URLs
det	Calculate the Determinant of a Matrix
match	Value Matching
match.arg	Argument Verification Using Partial Matching
maxCol	Find Maximum Position in Matrix
mean	Arithmetic Mean
NotYet	Not Yet Implemented Functions and Unused Arguments
nrow	The Number of Rows/Columns of an Array
options	Options Settings
license	The R License Terms
list	Lists -- Generic and Dotted Pairs
make.unique	Make Character Strings Unique
mapply	Apply a Function to Multiple List or Vector Arguments
detach	Detach Objects from the Search Path
dim	Dimensions of an Object
dimnames	Dimnames of an Object
exists	Is an Object Defined?
expand.grid	Create a Data Frame from All Combinations of Factor Variables
factor	Factors
file.access	Ascertain File Accessibility
function	Function Definition
funprog	Common Higher-Order Functions in Functional Programming Languages
gettext	Translate Text Messages
getwd	Get or Set Working Directory
grepRaw	Pattern Matching for Raw Vectors
groupGeneric	S3 Group Generic Functions
integer	Integer Vectors
interaction	Compute Factor Interactions
is.recursive	Is an Object Atomic or Recursive?
order	Ordering Permutation
pcre_config	Report Configuration Options for PCRE
pmatch	Partial String Matching
prmatrix	Print Matrices, Old-style
proc.time	Running Time of R
range	Range of Values
rank	Sample Ranks
replace	Replace Values in a Vector
is.single	Is an Object of Single Precision Type?
lazyLoad	Lazy Load a Database of R Objects
length	Length of an Object
list.files	List the Files in a Directory/Folder
gzcon	(De)compress I/O Through Connections
interactive	Is R Running Interactively?
invisible	Change the Print Mode to Invisible
rev	Reverse Elements
row.names	Get and Set Row Names for Data Frames
rowsum	Give Column Sums of a Matrix or Data Frame, Based on a Grouping Variable
setTimeLimit	Set CPU and/or Elapsed Time Limits
list2env	From A List, Build or Add To an Environment
margin.table	Compute table margin
mat.or.vec	Create a Matrix or a Vector
missing	Does a Formal Argument have a Value?
kronecker	Kronecker Products on Arrays
difftime	Time Intervals / Differences
dump	Text Representations of R Objects
duplicated	Determine Duplicate Elements
eigen	Spectral Decomposition of a Matrix
mode	The (Storage) Mode of an Object
nlevels	The Number of Levels of a Factor
noquote	Class for ‘no quote’ Printing of Character Strings
ns-internals	Namespace Internals
encodeString	Encode Character Vector as for Printing
find.package	Find Packages
findInterval	Find Interval Numbers or Indices
formatDL	Format Description Lists
l10n_info	Localization Information
library	Loading/Attaching and Listing of Packages
library.dynam	Loading DLLs from Packages
name	Names and Symbols
names	The Names of an Object
nargs	The Number of Arguments to a Function
load	Reload Saved Datasets
locales	Query or Set Aspects of the Locale
match.call	Argument Matching
ns-load	Loading and Unloading Name Spaces
paste	Concatenate Strings
path.expand	Expand File Paths
QR.Auxiliaries	Reconstruct the Q, R, or X Matrices from a QR Object
quit	Terminate an R Session
readLines	Read Text Lines from a Connection
readRDS	Serialization Interface for Single Objects
regmatches	Extract or Replace Matched Substrings
nchar	Count the Number of Characters (or Bytes or Width)
ns-reflect.Rd	Namespace Reflection Support
ns-topenv	Top Level Environment
outer	Outer Product of Arrays
match.fun	Extract a Function Specified by Name
memCompress	In-memory Compression and Decompression
memory.profile	Profile the Usage of Cons Cells
norm	Compute the Norm of a Matrix
normalizePath	Express File Paths in Canonical Form
numeric	Numeric Vectors
numeric_version	Numeric Versions
pretty	Pretty Breakpoints
print	Print Values
prod	Product of Vector Elements
formatC	Formatting Using C-style Formats
gctorture	Torture Garbage Collector
get	Return the Value of a Named Object
gl	Generate Factor Levels
prop.table	Express Table Entries as Fraction of Marginal Table
readBin	Transfer Binary Data To and From Connections
readChar	Transfer Character Strings To and From Connections
readRenviron	Set Environment Variables from a File
grep	Pattern Matching and Replacement
is.language	Is an Object a Language Object?
is.object	Is an Object ‘internally classed’?
isS4	Test for an S4 object
parse	Parse Expressions
print.data.frame	Printing Data Frames
print.default	Default Printing
rapply	Recursively Apply a Function to a List
raw	Raw Vectors
reg.finalizer	Finalization of Objects
regex	Regular Expressions as used in R
sQuote	Quote Text
sets	Set Operations
sort	Sorting or Ordering Vectors
source	Read R Code from a File, a Connection or Expressions
srcfile	References to Source Files and Code
sample	Random Samples and Permutations
seek	Functions to Reposition Connections
seq.Date	Generate Regular Sequences of Dates
rep	Replicate Elements of Vectors and Lists
save	Save R Objects
scale	Scaling and Centering of Matrix-like Objects
shQuote	Quote Strings for Use in OS Shells
isSymmetric	Test if a Matrix or other Object is Symmetric (Hermitian)
lengths	Lengths of List or Vector Elements
levels	Levels Attributes
ls	List Objects
make.names	Make Syntactically Valid Names
matmult	Matrix Multiplication
matrix	Matrices
merge	Merge Two Data Frames
standardGeneric	Formal Method System -- Dispatching S4 Methods
substr	Substrings of a Character Vector
sum	Sum of Vector Elements
system	Invoke a System Command
message	Diagnostic Messages
ns-dblcolon	Double Colon and Triple Colon Operators
ns-hooks	Hooks for Namespace Events
octmode	Display Numbers in Octal
split	Divide into Groups and Reassemble
strrep	Repeat the Elements of a Character Vector
strsplit	Split the Elements of a Character Vector
showConnections	Display Connections
socketSelect	Wait on Socket Connections
solve	Solve a System of Equations
startsWith	Does String Start or End With Another String?
stop	Stop Function Execution
structure	Attribute Specification
strwrap	Wrap Character Strings to Format Paragraphs
sprintf	Use C-style String Formatting Commands
readline	Read a Line from the Terminal
round.POSIXt	Round / Truncate Data-Time Objects
row	Row Indexes
sequence	Create A Vector of Sequences
subset	Subsetting Vectors, Matrices and Data Frames
substitute	Substituting and Quoting Expressions
t	Matrix Transpose
table	Cross Tabulation and Table Creation
textConnection	Text Connections
tilde	Tilde Operator
typeof	The Type of an Object
unique	Extract Unique Elements
system.file	Find Names of R System Files
taskCallbackNames	Query the Names of the Current Internal Top-Level Task Callbacks
tempfile	Create Names for Temporary Files
trimws	Remove Leading/Trailing Whitespace
serialize	Simple Serialization Interface
slice.index	Slice Indexes in an Array
slotOp	Extract or Replace A Slot
stopifnot	Ensure the Truth of R Expressions
try	Try an Expression Allowing Error Recovery
validUTF8	Check if a Character Vector is Validly Encoded
vector	Vectors
withVisible	Return both a Value and its Visibility
which.min	Where is the Min() or Max() or first TRUE or FALSE ?
shell	Invoke a System Command, using a Shell
zapsmall	Rounding of Numbers
zpackages	Listing of Packages
strptime	Date-time Conversion Functions to and from Character
sweep	Sweep out Array Summaries
switch	Select One of a List of Alternatives
system.time	CPU Time Used
write	Write Data to a File
tabulate	Tabulation for Vectors
tapply	Apply a Function Over a Ragged Array
trace	Interactive Tracing and Debugging of Calls to a Function or Method
traceback	Get and Print Call Stacks
system2	Invoke a System Command
timezones	Time Zones
toString	Convert an R Object to a Character String
unlist	Flatten Lists
Signals	Interrupting Execution of R
unlink	Delete Files and Directories
weekdays	Extract Parts of a POSIXt or Date Object
which	Which indices are TRUE?
unname	Remove names or dimnames
warning	Warning Messages
warnings	Print Warning Messages
.Machine	Numerical Characteristics of the Machine
on.exit	Function Exit Code
polyroot	Find Zeros of a Real or Complex Polynomial
pos.to.env	Convert Positions in the Search Path to Environments
pushBack	Push Text Back on to a Connection
qr	The QR Decomposition of a Matrix
rawConnection	Raw Connections
rawConversion	Convert to or from Raw Vectors
rle	Run Length Encoding
.Script	Scripting Language Interface
zutils	Miscellaneous Internal/Programming Utilities
remove	Remove Objects from a Specified Environment
scan	Read Data Values
search	Give Search Path for R Objects
seq.POSIXt	Generate Regular Sequences of Times
seq	Sequence Generation
writeLines	Write Lines to a Connection
xtfrm	Auxiliary Function for Sorting and Ranking
sign	Sign Function
sink	Send R Output to a File
strtoi	Convert Strings to Integers
strtrim	Trim Character Strings to Specified Display Widths
summary	Object Summaries
svd	Singular Value Decomposition of a Matrix
sys.parent	Functions to Access the Function Call Stack
sys.source	Parse and Evaluate Expressions from a File
taskCallback	Add or Remove a Top-Level Task Callback
taskCallbackManager	Create an R-level Task Callback Manager
tracemem	Trace Copying of Objects
transform	Transform an Object, for Example a Data Frame
userhooks	Functions to Get and Set Hooks for Load, Attach, Detach and Unload
utf8Conversion	Convert Integer Vectors to or from UTF-8-encoded Character Vectors
shell.exec	Open a File or URL using Windows File Associations
with	Evaluate an Expression in a Data Environment
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Details

Priority	base
License	Part of R 3.4.1

suggests	methods
Contributors	contributors worldwide, R team

base v3.4.1

The R Base Package

Functions in base

Details

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