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base (version 3.5.3)
The R Base Package
Description
Base R functions.
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Version
3.5.3
License
Part of R 3.5.3
Maintainer
R-core R-core@R-project.org
Last Published
December 12th, 2019
Functions in base (3.5.3)
Search all functions
Colon
Colon Operator
Encoding
Read or Set the Declared Encodings for a Character Vector
Bessel
Bessel Functions
CallExternal
Modern Interfaces to C/C++ code
InternalMethods
Internal Generic Functions
La_library
LAPACK Library
Dates
Date Class
Arithmetic
Arithmetic Operators
LongVectors
Long Vectors
Defunct
Marking Objects as Defunct
Extract
Extract or Replace Parts of an Object
EnvVar
Environment Variables
AsIs
Inhibit Interpretation/Conversion of Objects
La_version
LAPACK Version
MathFun
Miscellaneous Mathematical Functions
Reserved
Reserved Words in R
Foreign
Foreign Function Interface
Last.value
Value of Last Evaluated Expression
NumericConstants
Numeric Constants
Ops.Date
Operators on the Date Class
ISOdatetime
Date-time Conversion Functions from Numeric Representations
RdUtils
Utilities for Processing Rd Files
Recall
Recursive Calling
Hyperbolic
Hyperbolic Functions
Sys.glob
Wildcard Expansion on File Paths
Sys.info
Extract System and User Information
Cstack_info
Report Information on C Stack Size and Usage
UseMethod
Class Methods
Rhome
Return the R Home Directory
DateTimeClasses
Date-Time Classes
Extract.data.frame
Extract or Replace Parts of a Data Frame
Extract.factor
Extract or Replace Parts of a Factor
log
Logarithms and Exponentials
Sys.localeconv
Find Details of the Numerical and Monetary Representations in the Current Locale
Sys.readlink
Read File Symbolic Links
Memory-limits
Memory Limits in R
Memory
Memory Available for Data Storage
Primitive
Look Up a Primitive Function
Logic
Logical Operators
Quotes
Quotes
Internal
Call an Internal Function
Constants
Built-in Constants
Paren
Parentheses and Braces
NA
‘Not Available’ / Missing Values
.Platform
Platform Specific Variables
Round
Rounding of Numbers
agrep
Approximate String Matching (Fuzzy Matching)
NULL
The Null Object
Sys.sleep
Suspend Execution for a Time Interval
Sys.time
Get Current Date and Time
Special
Special Functions of Mathematics
all
Are All Values True?
Sys.getenv
Get Environment Variables
Syntax
Operator Syntax and Precedence
Sys.getpid
Get the Process ID of the R Session
as.Date
Date Conversion Functions to and from Character
Startup
Initialization at Start of an R Session
append
Vector Merging
assignOps
Assignment Operators
apply
Apply Functions Over Array Margins
Sys.which
Find Full Paths to Executables
Control
Control Flow
Vectorize
Vectorize a Scalar Function
as.POSIX*
Date-time Conversion Functions
as.function
Convert Object to Function
all.equal
Test if Two Objects are (Nearly) Equal
attr
Object Attributes
Trig
Trigonometric Functions
all.names
Find All Names in an Expression
Extremes
Maxima and Minima
attributes
Object Attribute Lists
attach
Attach Set of R Objects to Search Path
assign
Assign a Value to a Name
any
Are Some Values True?
as.environment
Coerce to an Environment Object
as.data.frame
Coerce to a Data Frame
basename
Manipulate File Paths
base-defunct
Defunct Functions in Package
base
base-deprecated
Deprecated Functions in Package
base
aperm
Array Transposition
.bincode
Bin a Numeric Vector
base-internal
Internal Objects in Package
base
base-package
The R Base Package
Foreign-internal
Internal Versions of the Foreign Function Interface
chol2inv
Inverse from Choleski (or QR) Decomposition
cat
Concatenate and Print
class
Object Classes
browserText
Functions to Retrieve Values Supplied by Calls to the Browser
browser
Environment Browser
cbind
Combine R Objects by Rows or Columns
bindenv
Binding and Environment Locking, Active Bindings
bitwise
Bitwise Logical Operations
Random
Random Number Generation
Random.user
User-supplied Random Number Generation
Sys.setFileTime
Set File Time
Sys.setenv
Set or Unset Environment Variables
contributors
R Project Contributors
connections
Functions to Manipulate Connections (Files, URLs, ...)
char.expand
Expand a String with Respect to a Target Table
R.Version
Version Information
abbreviate
Abbreviate Strings
character
Character Vectors
args
Argument List of a Function
array
Multi-way Arrays
callCC
Call With Current Continuation
autoload
On-demand Loading of Packages
backsolve
Solve an Upper or Lower Triangular System
date
System Date and Time
conditions
Condition Handling and Recovery
dcf
Read and Write Data in DCF Format
conflicts
Search for Masked Objects on the Search Path
deparse
Expression Deparsing
data.matrix
Convert a Data Frame to a Numeric Matrix
deparseOpts
Options for Expression Deparsing
capabilities
Report Capabilities of this Build of R
dataframeHelpers
Data Frame Auxiliary Functions
builtins
Returns the Names of All Built-in Objects
body
Access to and Manipulation of the Body of a Function
do.call
Execute a Function Call
bquote
Partial substitution in expressions
dontCheck
Identity Function to Suppress Checking
eapply
Apply a Function Over Values in an Environment
by
Apply a Function to a Data Frame Split by Factors
c
Combine Values into a Vector or List
duplicated
Determine Duplicate Elements
call
Function Calls
dyn.load
Foreign Function Interface
chkDots
Warn About Extraneous Arguments in the "..." of Its Caller
chol
The Choleski Decomposition
eigen
Spectral Decomposition of a Matrix
file.info
Extract File Information
debug
Debug a Function
delayedAssign
Delay Evaluation
col
Column Indexes
charmatch
Partial String Matching
chartr
Character Translation and Casefolding
dim
Dimensions of an Object
dimnames
Dimnames of an Object
files2
Manipulation of Directories and File Permissions
colSums
Form Row and Column Sums and Means
eval
Evaluate an (Unevaluated) Expression
exists
Is an Object Defined?
row+colnames
Row and Column Names
file.path
Construct Path to File
find.package
Find Packages
getDLLRegisteredRoutines
Reflectance Information for C/Fortran routines in a DLL
comment
Query or Set a
"comment"
Attribute
copyright
Copyrights of Files Used to Build R
complex
Complex Numbers and Basic Functionality
commandArgs
Extract Command Line Arguments
formatC
Formatting Using C-style Formats
data.class
Object Classes
function
Function Definition
crossprod
Matrix Crossproduct
funprog
Common Higher-Order Functions in Functional Programming Languages
data.frame
Data Frames
file.show
Display One or More Text Files
files
File Manipulation
findInterval
Find Interval Numbers or Indices
diff
Lagged Differences
gc
Garbage Collection
force
Force Evaluation of an Argument
cumsum
Cumulative Sums, Products, and Extremes
difftime
Time Intervals / Differences
dots
…,
..1
, etc used in Functions
getLoadedDLLs
Get DLLs Loaded in Current Session
groupGeneric
S3 Group Generic Functions
curlGetHeaders
Retrieve Headers from URLs
cut.POSIXt
Convert a Date or Date-Time Object to a Factor
interaction
Compute Factor Interactions
interactive
Is R Running Interactively?
grouping
Grouping Permutation
double
Double-Precision Vectors
identical
Test Objects for Exact Equality
gc.time
Report Time Spent in Garbage Collection
gctorture
Torture Garbage Collector
expand.grid
Create a Data Frame from All Combinations of Factor Variables
identity
Identity Function
cut
Convert Numeric to Factor
kappa
Compute or Estimate the Condition Number of a Matrix
grep
Pattern Matching and Replacement
grepRaw
Pattern Matching for Raw Vectors
expression
Unevaluated Expressions
extSoftVersion
Report Versions of Third-Party Software
factor
Factors
det
Calculate the Determinant of a Matrix
kronecker
Kronecker Products on Arrays
lapply
Apply a Function over a List or Vector
forceAndCall
Call a function with Some Arguments Forced
lazyLoad
Lazy Load a Database of R Objects
is.function
Is an Object of Type (Primitive) Function?
list2env
From A List, Build or Add To an Environment
formals
Access to and Manipulation of the Formal Arguments
is.language
Is an Object a Language Object?
detach
Detach Objects from the Search Path
.Device
Lists of Open/Active Graphics Devices
dput
Write an Object to a File or Recreate it
drop
Drop Redundant Extent Information
encodeString
Encode Character Vector as for Printing
is.object
Is an Object ‘internally classed’?
isSymmetric
Test if a Matrix or other Object is Symmetric (Hermitian)
diag
Matrix Diagonals
jitter
‘Jitter’ (Add Noise) to Numbers
is.recursive
Is an Object Atomic or Recursive?
get
Return the Value of a Named Object
load
Reload Saved Datasets
levels
Levels Attributes
mat.or.vec
Create a Matrix or a Vector
match.fun
Extract a Function Specified by Name
libPaths
Search Paths for Packages
getCallingDLL
Compute DLL for Native Interface Call
match
Value Matching
list
Lists -- Generic and Dotted Pairs
mean
Arithmetic Mean
environment
Environment Access
droplevels
Drop Unused Levels from Factors
file.access
Ascertain File Accessibility
memCompress
In-memory Compression and Decompression
list.files
List the Files in a Directory/Folder
matmult
Matrix Multiplication
file.choose
Choose a File Interactively
gzcon
(De)compress I/O Through Connections
names
The Names of an Object
noquote
Class for ‘no quote’ Printing of Character Strings
nargs
The Number of Arguments to a Function
hexmode
Display Numbers in Hexadecimal
make.names
Make Syntactically Valid Names
pmatch
Partial String Matching
is.R
Are we using R, rather than S?
make.unique
Make Character Strings Unique
isS4
Test for an S4 object
polyroot
Find Zeros of a Real or Complex Polynomial
memory.profile
Profile the Usage of Cons Cells
dump
Text Representations of R Objects
format.pval
Format P Values
norm
Compute the Norm of a Matrix
formatDL
Format Description Lists
ns-topenv
Top Level Environment
l10n_info
Localization Information
merge
Merge Two Data Frames
prop.table
Express Table Entries as Fraction of Marginal Table
getwd
Get or Set Working Directory
normalizePath
Express File Paths in Canonical Form
numeric
Numeric Vectors
NotYet
Not Yet Implemented Functions and Unused Arguments
labels
Find Labels from Object
library.dynam
Loading DLLs from Packages
ns-hooks
Hooks for Namespace Events
ns-internals
Namespace Internals
pushBack
Push Text Back on to a Connection
license
The R License Terms
print
Print Values
gl
Generate Factor Levels
parse
Parse Expressions
match.arg
Argument Verification Using Partial Matching
match.call
Argument Matching
format
Encode in a Common Format
ifelse
Conditional Element Selection
paste
Concatenate Strings
quit
Terminate an R Session
format.info
format(.) Information
range
Range of Values
regex
Regular Expressions as used in R
regmatches
Extract or Replace Matched Substrings
print.data.frame
Printing Data Frames
mode
The (Storage) Mode of an Object
remove
Remove Objects from a Specified Environment
integer
Integer Vectors
readChar
Transfer Character Strings To and From Connections
round.POSIXt
Round / Truncate Data-Time Objects
getNativeSymbolInfo
Obtain a Description of one or more Native (C/Fortran) Symbols
rowsum
Give Column Sums of a Matrix or Data Frame, Based on a Grouping Variable
seq.Date
Generate Regular Sequences of Dates
readLines
Read Text Lines from a Connection
rev
Reverse Elements
seq.POSIXt
Generate Regular Sequences of Times
rle
Run Length Encoding
gettext
Translate Text Messages
is.single
Is an Object of Single Precision Type?
sQuote
Quote Text
is.unsorted
Test if an Object is Not Sorted
row
Row Indexes
iconv
Convert Character Vector between Encodings
row.names
Get and Set Row Names for Data Frames
icuSetCollate
Setup Collation by ICU
libcurlVersion
Report Version of libcurl
invisible
Change the Print Mode to Invisible
is.finite
Finite, Infinite and NaN Numbers
name
Names and Symbols
library
Loading/Attaching and Listing of Packages
length
Length of an Object
lengths
Lengths of List or Vector Elements
search
Give Search Path for R Objects
sprintf
Use C-style String Formatting Commands
seq
Sequence Generation
locales
Query or Set Aspects of the Locale
logical
Logical Vectors
on.exit
Function Exit Code
srcfile
References to Source Files and Code
seek
Functions to Reposition Connections
sequence
Create A Vector of Sequences
mapply
Apply a Function to Multiple List or Vector Arguments
lower.tri
Lower and Upper Triangular Part of a Matrix
options
Options Settings
sys.parent
Functions to Access the Function Call Stack
split
Divide into Groups and Reassemble
strwrap
Wrap Character Strings to Format Paragraphs
source
Read R Code from a File, a Connection or Expressions
writeLines
Write Lines to a Connection
margin.table
Compute table margin
ls
List Objects
matrix
Matrices
subset
Subsetting Vectors, Matrices and Data Frames
weekdays
Extract Parts of a POSIXt or Date Object
switch
Select One of a List of Alternatives
message
Diagnostic Messages
xtfrm
Auxiliary Function for Sorting and Ranking
nrow
The Number of Rows/Columns of an Array
maxCol
Find Maximum Position in Matrix
system.file
Find Names of R System Files
system.time
CPU Time Used
tempfile
Create Names for Temporary Files
missing
Does a Formal Argument have a Value?
nchar
Count the Number of Characters (or Bytes or Width)
solve
Solve a System of Equations
sort
Sorting or Ordering Vectors
textConnection
Text Connections
unlist
Flatten Lists
nlevels
The Number of Levels of a Factor
ns-dblcolon
Double Colon and Triple Colon Operators
numeric_version
Numeric Versions
ns-load
Loading and Unloading Name Spaces
ns-reflect.Rd
Namespace Reflection Support
traceback
Get and Print Call Stacks
pos.to.env
Convert Positions in the Search Path to Environments
tracemem
Trace Copying of Objects
octmode
Display Numbers in Octal
unname
Remove
names
or
dimnames
path.expand
Expand File Paths
userhooks
Functions to Get and Set Hooks for Load, Attach, Detach and Unload
pcre_config
Report Configuration Options for PCRE
pretty
Pretty Breakpoints
order
Ordering Permutation
outer
Outer Product of Arrays
qr
The QR Decomposition of a Matrix
QR.Auxiliaries
Reconstruct the Q, R, or X Matrices from a QR Object
print.default
Default Printing
proc.time
Running Time of R
utf8Conversion
Convert Integer Vectors to or from UTF-8-encoded Character Vectors
prmatrix
Print Matrices, Old-style
rawConversion
Convert to or from Raw Vectors
readBin
Transfer Binary Data To and From Connections
raw
Raw Vectors
rawConnection
Raw Connections
prod
Product of Vector Elements
readRDS
Serialization Interface for Single Objects
which
Which indices are TRUE?
rep
Replicate Elements of Vectors and Lists
replace
Replace Values in a Vector
readRenviron
Set Environment Variables from a File
rank
Sample Ranks
zutils
Miscellaneous Internal/Programming Utilities
sample
Random Samples and Permutations
rapply
Recursively Apply a Function to a List
save
Save R Objects
readline
Read a Line from the Terminal
stop
Stop Function Execution
reg.finalizer
Finalization of Objects
stopifnot
Ensure the Truth of R Expressions
scale
Scaling and Centering of Matrix-like Objects
sets
Set Operations
sink
Send R Output to a File
scan
Read Data Values
shQuote
Quote Strings for Use in OS Shells
slice.index
Slice Indexes in an Array
strsplit
Split the Elements of a Character Vector
serialize
Simple Serialization Interface
sum
Sum of Vector Elements
setTimeLimit
Set CPU and/or Elapsed Time Limits
strptime
Date-time Conversion Functions to and from Character
summary
Object Summaries
system2
Invoke a System Command
slotOp
Extract or Replace A Slot
tabulate
Tabulation for Vectors
table
Cross Tabulation and Table Creation
showConnections
Display Connections
sign
Sign Function
socketSelect
Wait on Socket Connections
standardGeneric
Formal Method System -- Dispatching S4 Methods
trace
Interactive Tracing and Debugging of Calls to a Function or Method
unique
Extract Unique Elements
startsWith
Does String Start or End With Another String?
warnings
Print Warning Messages
zapsmall
Rounding of Numbers: Zapping Small Ones to Zero
tilde
Tilde Operator
.Machine
Numerical Characteristics of the Machine
tapply
Apply a Function Over a Ragged Array
substitute
Substituting and Quoting Expressions
timezones
Time Zones
substr
Substrings of a Character Vector
unlink
Delete Files and Directories
zpackages
Listing of Packages
taskCallback
Add or Remove a Top-Level Task Callback
system
Invoke a System Command
svd
Singular Value Decomposition of a Matrix
structure
Attribute Specification
warning
Warning Messages
strtrim
Trim Character Strings to Specified Display Widths
strtoi
Convert Strings to Integers
toString
Convert an R Object to a Character String
try
Try an Expression Allowing Error Recovery
trimws
Remove Leading/Trailing Whitespace
sys.source
Parse and Evaluate Expressions from a File
withVisible
Return both a Value and its Visibility
write
Write Data to a File
strrep
Repeat the Elements of a Character Vector
validUTF8
Check if a Character Vector is Validly Encoded
transform
Transform an Object, for Example a Data Frame
typeof
The Type of an Object
sweep
Sweep out Array Summaries
.Script
Scripting Language Interface
which.min
Where is the Min() or Max() or first TRUE or FALSE ?
taskCallbackNames
Query the Names of the Current Internal Top-Level Task Callbacks
t
Matrix Transpose
taskCallbackManager
Create an R-level Task Callback Manager
vector
Vectors
with
Evaluate an Expression in a Data Environment
Comparison
Relational Operators
Deprecated
Marking Objects as Deprecated