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base (version 3.4.3)
The R Base Package
Description
Base R functions.
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Version
3.4.3
License
Part of R 3.4.3
Maintainer
R-core R-core@R-project.org
Last Published
January 1st, 1970
Functions in base (3.4.3)
Search all functions
Bessel
Bessel Functions
CallExternal
Modern Interfaces to C/C++ code
Cstack_info
Report Information on C Stack Size and Usage
Arithmetic
Arithmetic Operators
DateTimeClasses
Date-Time Classes
AsIs
Inhibit Interpretation/Conversion of Objects
Constants
Built-in Constants
Control
Control Flow
Colon
Colon Operator
Comparison
Relational Operators
Extract.data.frame
Extract or Replace Parts of a Data Frame
Encoding
Read or Set the Declared Encodings for a Character Vector
Defunct
Marking Objects as Defunct
Dates
Date Class
Extract.factor
Extract or Replace Parts of a Factor
Deprecated
Marking Objects as Deprecated
Extract
Extract or Replace Parts of an Object
EnvVar
Environment Variables
log
Logarithms and Exponentials
InternalMethods
Internal Generic Functions
Extremes
Maxima and Minima
La_library
LAPACK Library
Foreign-internal
Internal Versions of the Foreign Function Interface
Logic
Logical Operators
La_version
LAPACK Version
Last.value
Value of Last Evaluated Expression
Foreign
Foreign Function Interface
Hyperbolic
Hyperbolic Functions
NumericConstants
Numeric Constants
Ops.Date
Operators on the Date Class
ISOdatetime
Date-time Conversion Functions from Numeric Representations
Internal
Call an Internal Function
RdUtils
Utilities for Processing Rd Files
LongVectors
Long Vectors
Recall
Recursive Calling
MathFun
Miscellaneous Mathematical Functions
Reserved
Reserved Words in R
Paren
Parentheses and Braces
Rhome
Return the R Home Directory
.Platform
Platform Specific Variables
Startup
Initialization at Start of an R Session
Sys.setFileTime
Set File Time
Random.user
User-supplied Random Number Generation
Sys.setenv
Set or Unset Environment Variables
Random
Random Number Generation
Syntax
Operator Syntax and Precedence
NA
‘Not Available’ / Missing Values
Sys.getenv
Get Environment Variables
Sys.getpid
Get the Process ID of the R Session
NULL
The Null Object
Sys.which
Find Full Paths to Executables
Trig
Trigonometric Functions
Primitive
Look Up a Primitive Function
any
Are Some Values True?
Quotes
Quotes
aperm
Array Transposition
Sys.glob
Wildcard Expansion on File Paths
Memory-limits
Memory Limits in R
Memory
Memory Available for Data Storage
Sys.info
Extract System and User Information
Round
Rounding of Numbers
Sys.sleep
Suspend Execution for a Time Interval
Special
Special Functions of Mathematics
Sys.time
Get Current Date and Time
Sys.localeconv
Find Details of the Numerical and Monetary Representations in the Current Locale
Sys.readlink
Read File Symbolic Links
UseMethod
Class Methods
R.Version
Version Information
Vectorize
Vectorize a Scalar Function
abbreviate
Abbreviate Strings
append
Vector Merging
all.equal
Test if Two Objects are (Nearly) Equal
all.names
Find All Names in an Expression
apply
Apply Functions Over Array Margins
as.function
Convert Object to Function
autoload
On-demand Loading of Packages
assign
Assign a Value to a Name
backsolve
Solve an Upper or Lower Triangular System
basename
Manipulate File Paths
args
Argument List of a Function
attr
Object Attributes
array
Multi-way Arrays
attributes
Object Attribute Lists
as.data.frame
Coerce to a Data Frame
bindenv
Binding and Environment Locking, Active Bindings
base-defunct
Defunct Functions in Package
base
base-deprecated
Deprecated Functions in Package
base
bitwise
Bitwise Logical Operations
c
Combine Values into a Vector or List
.bincode
Bin a Numeric Vector
call
Function Calls
char.expand
Expand a String with Respect to a Target Table
callCC
Call With Current Continuation
agrep
Approximate String Matching (Fuzzy Matching)
capabilities
Report Capabilities of this Build of R
all
Are All Values True?
as.Date
Date Conversion Functions to and from Character
cat
Concatenate and Print
comment
Query or Set a
"comment"
Attribute
cbind
Combine R Objects by Rows or Columns
class
Object Classes
chol2inv
Inverse from Choleski (or QR) Decomposition
copyright
Copyrights of Files Used to Build R
col
Column Indexes
character
Character Vectors
colSums
Form Row and Column Sums and Means
crossprod
Matrix Crossproduct
connections
Functions to Manipulate Connections (Files, URLs, ...)
cut.POSIXt
Convert a Date or Date-Time Object to a Factor
as.POSIX*
Date-time Conversion Functions
assignOps
Assignment Operators
cut
Convert Numeric to Factor
attach
Attach Set of R Objects to Search Path
as.environment
Coerce to an Environment Object
body
Access to and Manipulation of the Body of a Function
base-internal
Internal Objects in Package
base
complex
Complex Numbers and Basic Functionality
date
System Date and Time
base-package
The R Base Package
dcf
Read and Write Data in DCF Format
browser
Environment Browser
debug
Debug a Function
browserText
Functions to Retrieve Values Supplied by Calls to the Browser
delayedAssign
Delay Evaluation
charmatch
Partial String Matching
dump
Text Representations of R Objects
chartr
Character Translation and Casefolding
duplicated
Determine Duplicate Elements
conditions
Condition Handling and Recovery
bquote
Partial substitution in expressions
builtins
Returns the Names of All Built-in Objects
conflicts
Search for Masked Objects on the Search Path
by
Apply a Function to a Data Frame Split by Factors
data.matrix
Convert a Data Frame to a Numeric Matrix
chkDots
Warn About Extraneous Arguments in the "..." of Its Caller
dataframeHelpers
Data Frame Auxiliary Functions
chol
The Choleski Decomposition
deparse
Expression Deparsing
contributors
R Project Contributors
data.class
Object Classes
environment
Environment Access
data.frame
Data Frames
.Device
Lists of Open/Active Graphics Devices
eval
Evaluate an (Unevaluated) Expression
diag
Matrix Diagonals
diff
Lagged Differences
do.call
Execute a Function Call
dontCheck
Identity Function to Suppress Checking
drop
Drop Redundant Extent Information
deparseOpts
Options for Expression Deparsing
double
Double-Precision Vectors
factor
Factors
dput
Write an Object to a File or Recreate it
file.access
Ascertain File Accessibility
droplevels
Drop Unused Levels from Factors
dyn.load
Foreign Function Interface
force
Force Evaluation of an Argument
eapply
Apply a Function Over Values in an Environment
forceAndCall
Call a function with Some Arguments Forced
row+colnames
Row and Column Names
commandArgs
Extract Command Line Arguments
eigen
Spectral Decomposition of a Matrix
cumsum
Cumulative Sums, Products, and Extremes
encodeString
Encode Character Vector as for Printing
curlGetHeaders
Retrieve Headers from URLs
find.package
Find Packages
exists
Is an Object Defined?
expand.grid
Create a Data Frame from All Combinations of Factor Variables
findInterval
Find Interval Numbers or Indices
file.path
Construct Path to File
difftime
Time Intervals / Differences
getCallingDLL
Compute DLL for Native Interface Call
getDLLRegisteredRoutines
Reflectance Information for C/Fortran routines in a DLL
files
File Manipulation
grepRaw
Pattern Matching for Raw Vectors
files2
Manipulaton of Directories and File Permissions
groupGeneric
S3 Group Generic Functions
is.finite
Finite, Infinite and NaN Numbers
formals
Access to and Manipulation of the Formal Arguments
is.function
Is an Object of Type (Primitive) Function?
format
Encode in a Common Format
function
Function Definition
is.unsorted
Test if an Object is Not Sorted
funprog
Common Higher-Order Functions in Functional Programming Languages
gctorture
Torture Garbage Collector
is.R
Are we using R, rather than S?
file.show
Display One or More Text Files
det
Calculate the Determinant of a Matrix
formatDL
Format Description Lists
formatC
Formatting Using C-style Formats
detach
Detach Objects from the Search Path
getLoadedDLLs
Get DLLs Loaded in Current Session
dim
Dimensions of an Object
libPaths
Search Paths for Packages
libcurlVersion
Report Version of libcurl
dimnames
Dimnames of an Object
extSoftVersion
Report Versions of Third-Party Software
expression
Unevaluated Expressions
file.choose
Choose a File Interactively
file.info
Extract File Information
gc
Garbage Collection
format.info
format(.) Information
gc.time
Report Time Spent in Garbage Collection
format.pval
Format P Values
grouping
Grouping Permutation
gettext
Translate Text Messages
getwd
Get or Set Working Directory
gzcon
(De)compress I/O Through Connections
getNativeSymbolInfo
Obtain a Description of one or more Native (C/Fortran) Symbols
load
Reload Saved Datasets
gl
Generate Factor Levels
grep
Pattern Matching and Replacement
locales
Query or Set Aspects of the Locale
get
Return the Value of a Named Object
margin.table
Compute table margin
icuSetCollate
Setup Collation by ICU
identity
Identity Function
identical
Test Objects for Exact Equality
interaction
Compute Factor Interactions
ifelse
Conditional Element Selection
kronecker
Kronecker Products on Arrays
jitter
‘Jitter’ (Add Noise) to Numbers
l10n_info
Localization Information
labels
Find Labels from Object
kappa
Compute or Estimate the Condition Number of a Matrix
lapply
Apply a Function over a List or Vector
mat.or.vec
Create a Matrix or a Vector
logical
Logical Vectors
missing
Does a Formal Argument have a Value?
integer
Integer Vectors
lazyLoad
Lazy Load a Database of R Objects
mode
The (Storage) Mode of an Object
length
Length of an Object
ls
List Objects
nargs
The Number of Arguments to a Function
make.names
Make Syntactically Valid Names
nchar
Count the Number of Characters (or Bytes or Width)
match.call
Argument Matching
hexmode
Display Numbers in Hexadecimal
match.fun
Extract a Function Specified by Name
maxCol
Find Maximum Position in Matrix
iconv
Convert Character Vector between Encodings
mean
Arithmetic Mean
interactive
Is R Running Interactively?
NotYet
Not Yet Implemented Functions and Unused Arguments
nrow
The Number of Rows/Columns of an Array
invisible
Change the Print Mode to Invisible
options
Options Settings
isS4
Test for an S4 object
order
Ordering Permutation
isSymmetric
Test if a Matrix or other Object is Symmetric (Hermitian)
paste
Concatenate Strings
lengths
Lengths of List or Vector Elements
is.language
Is an Object a Language Object?
path.expand
Expand File Paths
is.object
Is an Object ‘internally classed’?
QR.Auxiliaries
Reconstruct the Q, R, or X Matrices from a QR Object
is.recursive
Is an Object Atomic or Recursive?
quit
Terminate an R Session
readBin
Transfer Binary Data To and From Connections
ns-internals
Namespace Internals
readChar
Transfer Character Strings To and From Connections
print
Print Values
ns-load
Loading and Unloading Name Spaces
pushBack
Push Text Back on to a Connection
pretty
Pretty Breakpoints
qr
The QR Decomposition of a Matrix
lower.tri
Lower and Upper Triangular Part of a Matrix
rawConnection
Raw Connections
rawConversion
Convert to or from Raw Vectors
matmult
Matrix Multiplication
merge
Merge Two Data Frames
message
Diagnostic Messages
matrix
Matrices
nlevels
The Number of Levels of a Factor
noquote
Class for ‘no quote’ Printing of Character Strings
readRenviron
Set Environment Variables from a File
match.arg
Argument Verification Using Partial Matching
memCompress
In-memory Compression and Decompression
readline
Read a Line from the Terminal
memory.profile
Profile the Usage of Cons Cells
levels
Levels Attributes
ns-dblcolon
Double Colon and Triple Colon Operators
ns-hooks
Hooks for Namespace Events
license
The R License Terms
ns-reflect.Rd
Namespace Reflection Support
list
Lists -- Generic and Dotted Pairs
ns-topenv
Top Level Environment
polyroot
Find Zeros of a Real or Complex Polynomial
match
Value Matching
pmatch
Partial String Matching
numeric
Numeric Vectors
prmatrix
Print Matrices, Old-style
numeric_version
Numeric Versions
proc.time
Running Time of R
regmatches
Extract or Replace Matched Substrings
pcre_config
Report Configuration Options for PCRE
rep
Replicate Elements of Vectors and Lists
is.single
Is an Object of Single Precision Type?
round.POSIXt
Round / Truncate Data-Time Objects
row
Row Indexes
library
Loading/Attaching and Listing of Packages
setTimeLimit
Set CPU and/or Elapsed Time Limits
library.dynam
Loading DLLs from Packages
sets
Set Operations
pos.to.env
Convert Positions in the Search Path to Environments
list.files
List the Files in a Directory/Folder
prod
Product of Vector Elements
sign
Sign Function
prop.table
Express Table Entries as Fraction of Marginal Table
rapply
Recursively Apply a Function to a List
sink
Send R Output to a File
readLines
Read Text Lines from a Connection
srcfile
References to Source Files and Code
readRDS
Serialization Interface for Single Objects
reg.finalizer
Finalization of Objects
standardGeneric
Formal Method System -- Dispatching S4 Methods
row.names
Get and Set Row Names for Data Frames
raw
Raw Vectors
rowsum
Give Column Sums of a Matrix or Data Frame, Based on a Grouping Variable
replace
Replace Values in a Vector
seek
Functions to Reposition Connections
regex
Regular Expressions as used in R
rev
Reverse Elements
save
Save R Objects
list2env
From A List, Build or Add To an Environment
scale
Scaling and Centering of Matrix-like Objects
make.unique
Make Character Strings Unique
sequence
Create A Vector of Sequences
serialize
Simple Serialization Interface
mapply
Apply a Function to Multiple List or Vector Arguments
slice.index
Slice Indexes in an Array
name
Names and Symbols
slotOp
Extract or Replace A Slot
summary
Object Summaries
names
The Names of an Object
norm
Compute the Norm of a Matrix
svd
Singular Value Decomposition of a Matrix
normalizePath
Express File Paths in Canonical Form
t
Matrix Transpose
tilde
Tilde Operator
tracemem
Trace Copying of Objects
table
Cross Tabulation and Table Creation
transform
Transform an Object, for Example a Data Frame
textConnection
Text Connections
startsWith
Does String Start or End With Another String?
stop
Stop Function Execution
seq.Date
Generate Regular Sequences of Dates
structure
Attribute Specification
sort
Sorting or Ordering Vectors
strwrap
Wrap Character Strings to Format Paragraphs
source
Read R Code from a File, a Connection or Expressions
sQuote
Quote Text
sample
Random Samples and Permutations
stopifnot
Ensure the Truth of R Expressions
shQuote
Quote Strings for Use in OS Shells
strptime
Date-time Conversion Functions to and from Character
showConnections
Display Connections
socketSelect
Wait on Socket Connections
vector
Vectors
solve
Solve a System of Equations
warning
Warning Messages
sweep
Sweep out Array Summaries
switch
Select One of a List of Alternatives
xtfrm
Auxiliary Function for Sorting and Ranking
system
Invoke a System Command
.Machine
Numerical Characteristics of the Machine
system.file
Find Names of R System Files
system.time
CPU Time Used
taskCallbackManager
Create an R-level Task Callback Manager
trimws
Remove Leading/Trailing Whitespace
system2
Invoke a System Command
try
Try an Expression Allowing Error Recovery
taskCallback
Add or Remove a Top-Level Task Callback
trace
Interactive Tracing and Debugging of Calls to a Function or Method
traceback
Get and Print Call Stacks
utf8Conversion
Convert Integer Vectors to or from UTF-8-encoded Character Vectors
typeof
The Type of an Object
validUTF8
Check if a Character Vector is Validly Encoded
octmode
Display Numbers in Octal
print.data.frame
Printing Data Frames
on.exit
Function Exit Code
print.default
Default Printing
outer
Outer Product of Arrays
rle
Run Length Encoding
range
Range of Values
remove
Remove Objects from a Specified Environment
rank
Sample Ranks
scan
Read Data Values
zpackages
Listing of Packages
which
Which indices are TRUE?
zutils
Miscellaneous Internal/Programming Utilities
which.min
Where is the Min() or Max() or first TRUE or FALSE ?
strtoi
Convert Strings to Integers
strtrim
Trim Character Strings to Specified Display Widths
search
Give Search Path for R Objects
substr
Substrings of a Character Vector
sum
Sum of Vector Elements
seq.POSIXt
Generate Regular Sequences of Times
parse
Parse Expressions
sys.parent
Functions to Access the Function Call Stack
seq
Sequence Generation
sys.source
Parse and Evaluate Expressions from a File
split
Divide into Groups and Reassemble
taskCallbackNames
Query the Names of the Current Internal Top-Level Task Callbacks
tabulate
Tabulation for Vectors
sprintf
Use C-style String Formatting Commands
tapply
Apply a Function Over a Ragged Array
unique
Extract Unique Elements
timezones
Time Zones
strrep
Repeat the Elements of a Character Vector
toString
Convert an R Object to a Character String
strsplit
Split the Elements of a Character Vector
subset
Subsetting Vectors, Matrices and Data Frames
tempfile
Create Names for Temporary Files
unname
Remove
names
or
dimnames
substitute
Substituting and Quoting Expressions
userhooks
Functions to Get and Set Hooks for Load, Attach, Detach and Unload
zapsmall
Rounding of Numbers
warnings
Print Warning Messages
weekdays
Extract Parts of a POSIXt or Date Object
unlink
Delete Files and Directories
.Script
Scripting Language Interface
unlist
Flatten Lists
writeLines
Write Lines to a Connection
with
Evaluate an Expression in a Data Environment
withVisible
Return both a Value and its Visibility
write
Write Data to a File