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base (version 3.2.5)
The R Base Package
Description
Base R functions.
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Version
3.2.5
License
Part of R 3.2.5
Maintainer
R-core R-core@R-project.org
Last Published
January 1st, 1970
Functions in base (3.2.5)
Search functions
all.names
Find All Names in an Expression
aperm
Array Transposition
all.equal
Test if Two Objects are (Nearly) Equal
apply
Apply Functions Over Array Margins
abbreviate
Abbreviate Strings
any
Are Some Values True?
all
Are All Values True?
append
Vector Merging
args
Argument List of a Function
agrep
Approximate String Matching (Fuzzy Matching)
assign
Assign a Value to a Name
as.data.frame
Coerce to a Data Frame
as.Date
Date Conversion Functions to and from Character
as.function
Convert Object to Function
as.environment
Coerce to an Environment Object
array
Multi-way Arrays
assignOps
Assignment Operators
as.POSIX*
Date-time Conversion Functions
AsIs
Inhibit Interpretation/Conversion of Objects
Arithmetic
Arithmetic Operators
attributes
Object Attribute Lists
backsolve
Solve an Upper or Lower Triangular System
autoload
On-demand Loading of Packages
base-package
The R Base Package
base-internal
Internal Objects in Package
base
base-deprecated
Deprecated Functions in Package
base
basename
Manipulate File Paths
attach
Attach Set of R Objects to Search Path
attr
Object Attributes
base-defunct
Defunct Functions in Package
base
Bessel
Bessel Functions
bindenv
Binding and Environment Locking, Active Bindings
by
Apply a Function to a Data Frame Split by Factors
bitwise
Bitwise Logical Operations
builtins
Returns the Names of All Built-in Objects
browserText
Functions to Retrieve Values Supplied by Calls to the Browser
.bincode
Bin a Numeric Vector
bquote
Partial substitution in expressions
body
Access to and Manipulation of the Body of a Function
browser
Environment Browser
c
Combine Values into a Vector or List
character
Character Vectors
capabilities
Report Capabilities of this Build of R
cbind
Combine R Objects by Rows or Columns
callCC
Call With Current Continuation
cat
Concatenate and Print
char.expand
Expand a String with Respect to a Target Table
call
Function Calls
CallExternal
Modern Interfaces to C/C++ code
charmatch
Partial String Matching
Colon
Colon Operator
colSums
Form Row and Column Sums and Means
row+colnames
Row and Column Names
commandArgs
Extract Command Line Arguments
chol2inv
Inverse from Choleski (or QR) Decomposition
chartr
Character Translation and Casefolding
comment
Query or Set a
"comment"
Attribute
chol
The Choleski Decomposition
class
Object Classes
col
Column Indexes
copyright
Copyrights of Files Used to Build R
crossprod
Matrix Crossproduct
conflicts
Search for Masked Objects on the Search Path
conditions
Condition Handling and Recovery
Comparison
Relational Operators
Constants
Built-in Constants
connections
Functions to Manipulate Connections (Files, URLs, ...)
Control
Control Flow
contributors
R Project Contributors
complex
Complex Vectors
cut
Convert Numeric to Factor
cut.POSIXt
Convert a Date or Date-Time Object to a Factor
dataframeHelpers
Data Frame Auxiliary Functions
data.matrix
Convert a Data Frame to a Numeric Matrix
Dates
Date Class
date
System Date and Time
droplevels
droplevels
double
Double-Precision Vectors
dontCheck
Identity Function to Suppress Checking
dump
Text Representations of R Objects
data.class
Object Classes
delayedAssign
Delay Evaluation
data.frame
Data Frames
deparse
Expression Deparsing
diag
Matrix Diagonals
.Device
Lists of Open/Active Graphics Devices
expand.grid
Create a Data Frame from All Combinations of Factors
dyn.load
Foreign Function Interface
duplicated
Determine Duplicate Elements
expression
Unevaluated Expressions
Cstack_info
Report Information on C Stack Size and Usage
cumsum
Cumulative Sums, Products, and Extremes
Deprecated
Marking Objects as Deprecated
deparseOpts
Options for Expression Deparsing
diff
Lagged Differences
difftime
Time Intervals
Extract
Extract or Replace Parts of an Object
eapply
Apply a Function Over Values in an Environment
eigen
Spectral Decomposition of a Matrix
Extremes
Maxima and Minima
dim
Dimensions of an Object
do.call
Execute a Function Call
encodeString
Encode Character Vector as for Printing
Encoding
Read or Set the Declared Encodings for a Character Vector
Extract.data.frame
Extract or Replace Parts of a Data Frame
Extract.factor
Extract or Replace Parts of a Factor
Foreign-internal
Internal Versions of the Foreign Function Interface
forceAndCall
Call a function with Some Arguments Forced
get
Return the Value of a Named Object
extSoftVersion
Report Versions of Third-Party Software
getCallingDLL
Compute DLL for Native Interface Call
factor
Factors
gzcon
(De)compress I/O Through Connections
jitter
Jitter (Add Noise) to Numbers
ISOdatetime
Date-time Conversion Functions from Numeric Representations
is.R
Are we using R, rather than S?
hexmode
Display Numbers in Hexadecimal
kappa
Compute or Estimate the Condition Number of a Matrix
list2env
From A List, Build or Add To an Environment
libcurlVersion
Report Version of libcurl
curlGetHeaders
Retrieve Headers from URLs
debug
Debug a Function
dput
Write an Object to a File or Recreate it
Defunct
Marking Objects as Defunct
drop
Drop Redundant Extent Information
environment
Environment Access
file.access
Ascertain File Accessibility
EnvVar
Environment Variables
file.choose
Choose a File Interactively
groupGeneric
S3 Group Generic Functions
grepRaw
Pattern Matching for Raw Vectors
ifelse
Conditional Element Selection
identity
Identity Function
is.recursive
Is an Object Atomic or Recursive?
is.single
Is an Object of Single Precision Type?
DateTimeClasses
Date-Time Classes
detach
Detach Objects from the Search Path
det
Calculate the Determinant of a Matrix
dcf
Read and Write Data in DCF Format
exists
Is an Object Defined?
eval
Evaluate an (Unevaluated) Expression
files2
Manipulaton of Directories and File Permissions
find.package
Find Packages
formals
Access to and Manipulation of the Formal Arguments
Foreign
Foreign Function Interface
gc.time
Report Time Spent in Garbage Collection
gctorture
Torture Garbage Collector
grep
Pattern Matching and Replacement
gl
Generate Factor Levels
integer
Integer Vectors
interaction
Compute Factor Interactions
lazyLoad
Lazy Load a Database of R Objects
length
Length of an Object
library
Loading/Attaching and Listing of Packages
license
The R License Terms
Logic
Logical Operators
matrix
Matrices
logical
Logical Vectors
maxCol
Find Maximum Position in Matrix
noquote
Class for no quote Printing of Character Strings
norm
Compute the Norm of a Matrix
numeric_version
Numeric Versions
numeric
Numeric Vectors
pmatch
Partial String Matching
Quotes
Quotes
polyroot
Find Zeros of a Real or Complex Polynomial
readBin
Transfer Binary Data To and From Connections
RdUtils
Utilities for Processing Rd Files
Random.user
User-supplied Random Number Generation
Recall
Recursive Calling
readRenviron
Set Environment Variables from a File
file.show
Display One or More Text Files
files
File Manipulation
formatDL
Format Description Lists
force
Force Evaluation of an Argument
findInterval
Find Interval Numbers or Indices
gettext
Translate Text Messages
function
Function Definition
InternalMethods
Internal Generic Functions
getwd
Get or Set Working Directory
sample
Random Samples and Permutations
save
Save R Objects
substitute
Substituting and Quoting Expressions
sets
Set Operations
serialize
Simple Serialization Interface
substr
Substrings of a Character Vector
Syntax
Operator Syntax and Precedence
Sys.getenv
Get Environment Variables
formatC
Formatting Using C-style Formats
format.pval
Format P Values
getDLLRegisteredRoutines
Reflectance Information for C/Fortran routines in a DLL
Internal
Call an Internal Function
Hyperbolic
Hyperbolic Functions
getNativeSymbolInfo
Obtain a Description of one or more Native (C/Fortran) Symbols
iconv
Convert Character Vector between Encodings
interactive
Is R Running Interactively?
is.function
Is an Object of Type (Primitive) Function?
is.finite
Finite, Infinite and NaN Numbers
load
Reload Saved Datasets
lower.tri
Lower and Upper Triangular Part of a Matrix
LongVectors
Long Vectors
match.call
Argument Matching
match.arg
Argument Verification Using Partial Matching
ns-dblcolon
Double Colon and Triple Colon Operators
nrow
The Number of Rows/Columns of an Array
memCompress
In-memory Compression and Decompression
mean
Arithmetic Mean
is.language
Is an Object a Language Object?
invisible
Change the Print Mode to Invisible
NumericConstants
Numeric Constants
is.object
Is an Object internally classed?
list.files
List the Files in a Directory/Folder
list
Lists -- Generic and Dotted Pairs
ls
List Objects
margin.table
Compute table margin
make.names
Make Syntactically Valid Names
memory.profile
Profile the Usage of Cons Cells
mat.or.vec
Create a Matrix or a Vector
merge
Merge Two Data Frames
names
The Names of an Object
nargs
The Number of Arguments to a Function
paste
Concatenate Strings
row
Row Indexes
round.POSIXt
Round / Truncate Data-Time Objects
path.expand
Expand File Paths
slice.index
Slice Indexes in an Array
sink
Send R Output to a File
strsplit
Split the Elements of a Character Vector
La_version
LAPACK Version
labels
Find Labels from Object
lengths
Lengths of List or Vector Elements
levels
Levels Attributes
mapply
Apply a Function to Multiple List or Vector Arguments
make.unique
Make Character Strings Unique
match
Value Matching
match.fun
Extract a Function Specified by Name
missing
Does a Formal Argument have a Value?
message
Diagnostic Messages
file.info
Extract File Information
format.info
format(.) Information
file.path
Construct Path to File
format
Encode in a Common Format
funprog
Common Higher-Order Functions in Functional Programming Languages
gc
Garbage Collection
identical
Test Objects for Exact Equality
icuSetCollate
Setup Collation by ICU
isSymmetric
Test if a Matrix or other Object is Symmetric
isS4
Test for an S4 object
octmode
Display Numbers in Octal
order
Ordering Permutation
outer
Outer Product of Arrays
print.default
Default Printing
print
Print Values
qr
The QR Decomposition of a Matrix
pushBack
Push Text Back on to a Connection
readChar
Transfer Character Strings To and From Connections
readline
Read a Line from the Terminal
Reserved
Reserved Words in R
lapply
Apply a Function over a List or Vector
Last.value
Value of Last Evaluated Expression
locales
Query or Set Aspects of the Locale
log
Logarithms and Exponentials
MathFun
Miscellaneous Mathematical Functions
matmult
Matrix Multiplication
ns-topenv
Top Level Environment
Memory
Memory Available for Data Storage
Memory-limits
Memory Limits in R
Sys.info
Extract System and User Information
NULL
The Null Object
strtoi
Convert Strings to Integers
Sys.localeconv
Find Details of the Numerical and Monetary Representations in the Current Locale
tempfile
Create Names for Temporary Files
traceback
Print Call Stacks
tracemem
Trace Copying of Objects
textConnection
Text Connections
which
Which indices are TRUE?
warning
Warning Messages
R.Version
Version Information
on.exit
Function Exit Code
Ops.Date
Operators on the Date Class
Primitive
Look Up a Primitive Function
print.data.frame
Printing Data Frames
Random
Random Number Generation
rank
Sample Ranks
range
Range of Values
rapply
Recursively Apply a Function to a List
rle
Run Length Encoding
Rhome
Return the R Home Directory
l10n_info
Localization Information
kronecker
Kronecker Products on Arrays
libPaths
Search Paths for Packages
mode
The (Storage) Mode of an Object
library.dynam
Loading DLLs from Packages
NotYet
Not Yet Implemented Functions and Unused Arguments
normalizePath
Express File Paths in Canonical Form
name
Names and Symbols
system2
Invoke a System Command
t
Matrix Transpose
ns-reflect.Rd
Namespace Reflection Support
ns-load
Loading and Unloading Name Spaces
toString
Convert an R Object to a Character String
trace
Interactive Tracing and Debugging of Calls to a Function or Method
unlink
Delete Files and Directories
with
Evaluate an Expression in a Data Environment
unlist
Flatten Lists
nchar
Count the Number of Characters (or Bytes or Width)
withVisible
Return both a value and its visibility
ns-hooks
Hooks for Namespace Events
nlevels
The Number of Levels of a Factor
ns-internals
Namespace Internals
pcre_config
Report Configuration Options for PCRE
.Platform
Platform Specific Variables
prod
Product of Vector Elements
proc.time
Running Time of R
prmatrix
Print Matrices, Old-style
prop.table
Express Table Entries as Fraction of Marginal Table
raw
Raw Vectors
reg.finalizer
Finalization of Objects
rawConnection
Raw Connections
regmatches
Extract or Replace Matched Substrings
scale
Scaling and Centering of Matrix-like Objects
scan
Read Data Values
search
Give Search Path for R Objects
seek
Functions to Reposition Connections
remove
Remove Objects from a Specified Environment
rev
Reverse Elements
source
Read R Code from a File or a Connection
Round
Rounding of Numbers
sequence
Create A Vector of Sequences
seq.POSIXt
Generate Regular Sequences of Times
slotOp
Extract or Replace A Slot
sQuote
Quote Text
socketSelect
Wait on Socket Connections
seq.Date
Generate Regular Sequences of Dates
row.names
Get and Set Row Names for Data Frames
srcfile
References to source files
strtrim
Trim Character Strings to Specified Display Widths
solve
Solve a System of Equations
rowsum
Give Column Sums of a Matrix or Data Frame, Based on a Grouping Variable
sort
Sorting or Ordering Vectors
seq
Sequence Generation
stopifnot
Ensure the Truth of R Expressions
stop
Stop Function Execution
Special
Special Functions of Mathematics
sum
Sum of Vector Elements
split
Divide into Groups and Reassemble
summary
Object Summaries
sprintf
Use C-style String Formatting Commands
switch
Select One of a List of Alternatives
sweep
Sweep out Array Summaries
sys.parent
Functions to Access the Function Call Stack
sys.source
Parse and Evaluate Expressions from a File
Sys.readlink
Read File Symbolic Links
Sys.sleep
Suspend Execution for a Time Interval
Sys.setenv
Set or Unset Environment Variables
transform
Transform an Object, for Example a Data Frame
structure
Attribute Specification
table
Cross Tabulation and Table Creation
Sys.setFileTime
Set File Time
tabulate
Tabulation for Vectors
tilde
Tilde Operator
timezones
Time Zones
vector
Vectors
.Script
Scripting Language Interface
Vectorize
Vectorize a Scalar Function
Sys.glob
Wildcard Expansion on File Paths
Sys.getpid
Get the Process ID of the R Session
Sys.time
Get Current Date and Time
Sys.which
Find Full Paths to Executables
taskCallbackManager
Create an R-level Task Callback Manager
taskCallbackNames
Query the Names of the Current Internal Top-Level Task Callbacks
typeof
The Type of an Object
unique
Extract Unique Elements
utf8Conversion
Convert Integer Vectors to or from UTF-8-encoded Character Vectors
which.min
Where is the Min() or Max() or first TRUE or FALSE ?
userhooks
Functions to Get and Set Hooks for Load, Attach, Detach and Unload
warnings
Print Warning Messages
Trig
Trigonometric Functions
zutils
Miscellaneous Internal/Programming Utilities
weekdays
Extract Parts of a POSIXt or Date Object
write
Write Data to a File
pos.to.env
Convert Positions in the Search Path to Environments
Paren
Parentheses and Braces
parse
Parse Expressions
writeLines
Write Lines to a Connection
pretty
Pretty Breakpoints
readLines
Read Text Lines from a Connection
QR.Auxiliaries
Reconstruct the Q, R, or X Matrices from a QR Object
quit
Terminate an R Session
rep
Replicate Elements of Vectors and Lists
readRDS
Serialization Interface for Single Objects
replace
Replace Values in a Vector
setTimeLimit
Set CPU and/or Elapsed Time Limits
showConnections
Display Connections
shQuote
Quote Strings for Use in OS Shells
Startup
Initialization at Start of an R Session
sign
Sign Function
standardGeneric
Formal Method System -- Dispatching S4 Methods
strwrap
Wrap Character Strings to Format Paragraphs
system.file
Find Names of R System Files
subset
Subsetting Vectors, Matrices and Data Frames
tapply
Apply a Function Over a Ragged Array
.Machine
Numerical Characteristics of the Machine
system.time
CPU Time Used
zpackages
Listing of Packages
taskCallback
Add or Remove a Top-Level Task Callback
try
Try an Expression Allowing Error Recovery
trimws
Remove Leading/Trailing Whitespace
unname
Remove
names
or
dimnames
UseMethod
Class Methods
xtfrm
Auxiliary Function for Sorting and Ranking
zapsmall
Rounding of Numbers