base v3.4.0

The R Base Package

Base R functions.

Functions in base

Name Description
.Device
diag Matrix Diagonals
file.choose Choose a File Interactively
file.info Extract File Information
args Argument List of a Function
array Multi-way Arrays
autoload On-demand Loading of Packages
backsolve Solve an Upper or Lower Triangular System
.Platform Platform Specific Variables
Random.user User-supplied Random Number Generation
Random Random Number Generation
charmatch Partial String Matching
chartr Character Translation and Casefolding
copyright Copyrights of Files Used to Build R
Sys.getenv Get Environment Variables
Sys.getpid Get the Process ID of the R Session
agrep Approximate String Matching (Fuzzy Matching)
MathFun Miscellaneous Mathematical Functions
Sys.localeconv Find Details of the Numerical and Monetary Representations
Sys.readlink
Arithmetic Arithmetic Operators
R.Version Version Information
abbreviate Abbreviate Strings
AsIs Inhibit Interpretation/Conversion of Objects
Deprecated Marking Objects as Deprecated
Encoding Read or Set the Declared Encodings for a Character Vector
Round Rounding of Numbers
Special Special Functions of Mathematics
all.equal Test if Two Objects are (Nearly) Equal
attr Object Attributes
attributes Object Attribute Lists
all Are All Values True?
all.names Find All Names in an Expression
basename Manipulate File Paths
.bincode Bin a Numeric Vector
callCC Call With Current Continuation
capabilities Report Capabilities of this Build of R
char.expand Expand a String with Respect to a Target Table
character Character Vectors
comment Query or Set a
complex Complex Numbers and Basic Functionality
bindenv Binding and Environment Locking, Active Bindings
bitwise Bitwise Logical Operations
cat Concatenate and Print
cbind Combine R Objects by Rows or Columns
chkDots Warn About Extraneous Arguments in the "..." of Its Caller
chol The Choleski Decomposition
gc Garbage Collection
data.class Object Classes
data.frame Data Frames
drop Drop Redundant Extent Information
droplevels Drop Unused Levels from Factors
exists Is an Object Defined?
expand.grid Create a Data Frame from All Combinations of Factor Variables
files File Manipulation
files2 Manipulaton of Directories and File Permissions
formatC Formatting Using C-style Formats
crossprod Matrix Crossproduct
date System Date and Time
dcf Read and Write Data in DCF Format
as.POSIX* Date-time Conversion Functions
as.function Convert Object to Function
assign Assign a Value to a Name
formatDL Format Description Lists
base-defunct Defunct Functions in Package
base-deprecated Deprecated Functions in Package
as.Date Date Conversion Functions to and from Character
browser Environment Browser
browserText
chol2inv Inverse from Choleski (or QR) Decomposition
gc.time Report Time Spent in Garbage Collection
icuSetCollate Setup Collation by ICU
identical Test Objects for Exact Equality
class Object Classes
conditions Condition Handling and Recovery
conflicts Search for Masked Objects on the Search Path
diff Lagged Differences
difftime Time Intervals / Differences
double Double-Precision Vectors
integer Integer Vectors
interaction Compute Factor Interactions
library Loading/Attaching and Listing of Packages
library.dynam Loading DLLs from Packages
list.files List the Files in a Directory/Folder
list2env From A List, Build or Add To an Environment
data.matrix Convert a Data Frame to a Numeric Matrix
dataframeHelpers Data Frame Auxiliary Functions
det Calculate the Determinant of a Matrix
make.unique Make Character Strings Unique
mapply Apply a Function to Multiple List or Vector Arguments
missing Does a Formal Argument have a Value?
detach Detach Objects from the Search Path
do.call Execute a Function Call
dontCheck Identity Function to Suppress Checking
environment Environment Access
mode The (Storage) Mode of an Object
ns-dblcolon Double Colon and Triple Colon Operators
ns-hooks Hooks for Namespace Events
outer Outer Product of Arrays
parse Parse Expressions
rawConnection Raw Connections
hexmode Display Numbers in Hexadecimal
iconv Convert Character Vector between Encodings
is.language Is an Object a Language Object?
is.object Is an Object
isS4 Test for an S4 object
isSymmetric Test if a Matrix or other Object is Symmetric (Hermitian)
libPaths Search Paths for Packages
eval Evaluate an (Unevaluated) Expression
factor Factors
file.access Ascertain File Accessibility
dput Write an Object to a File or Recreate it
dyn.load Foreign Function Interface
eapply Apply a Function Over Values in an Environment
formals Access to and Manipulation of the Formal Arguments
format Encode in a Common Format
getCallingDLL Compute DLL for Native Interface Call
getDLLRegisteredRoutines Reflectance Information for C/Fortran routines in a DLL
is.finite Finite, Infinite and NaN Numbers
is.function Is an Object of Type (Primitive) Function?
kronecker Kronecker Products on Arrays
l10n_info Localization Information
ls List Objects
margin.table Compute table margin
mat.or.vec Create a Matrix or a Vector
libcurlVersion
match Value Matching
match.arg Argument Verification Using Partial Matching
make.names Make Syntactically Valid Names
rawConversion Convert to or from Raw Vectors
regmatches Extract or Replace Matched Substrings
rep Replicate Elements of Vectors and Lists
scan Read Data Values
search Give Search Path for R Objects
seek Functions to Reposition Connections
name Names and Symbols
names The Names of an Object
octmode Display Numbers in Octal
on.exit Function Exit Code
find.package Find Packages
findInterval Find Interval Numbers or Indices
force Force Evaluation of an Argument
memCompress In-memory Compression and Decompression
memory.profile Profile the Usage of Cons Cells
nlevels The Number of Levels of a Factor
seq.Date Generate Regular Sequences of Dates
split Divide into Groups and Reassemble
sprintf Use C-style String Formatting Commands
srcfile References to Source Files and Code
Constants Built-in Constants
noquote Class for
options Options Settings
order Ordering Permutation
pretty Pretty Breakpoints
Control Control Flow
Dates Date Class
Defunct Marking Objects as Defunct
InternalMethods Internal Generic Functions
La_library
NA Not Available
standardGeneric Formal Method System -- Dispatching S4 Methods
t Matrix Transpose
table Cross Tabulation and Table Creation
taskCallback Add or Remove a Top-Level Task Callback
taskCallbackManager Create an R-level Task Callback Manager
Signals Interrupting Execution of R
forceAndCall Call a function with Some Arguments Forced
getLoadedDLLs Get DLLs Loaded in Current Session
getNativeSymbolInfo
unlink Delete Files and Directories
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
grouping Grouping Permutation
gzcon
is.recursive Is an Object Atomic or Recursive?
is.single Is an Object of Single Precision Type?
NULL The Null Object
Reserved Reserved Words in R
Rhome Return the R Home Directory
pcre_config
pmatch Partial String Matching
prmatrix Print Matrices, Old-style
proc.time Running Time of R
range Range of Values
rank Sample Ranks
writeLines Write Lines to a Connection
xtfrm Auxiliary Function for Sorting and Ranking
replace Replace Values in a Vector
rev Reverse Elements
lengths Lengths of List or Vector Elements
levels Levels Attributes
load Reload Saved Datasets
socketSelect Wait on Socket Connections
solve Solve a System of Equations
startsWith Does String Start or End With Another String?
locales Query or Set Aspects of the Locale
match.call Argument Matching
match.fun Extract a Function Specified by Name
merge Merge Two Data Frames
message Diagnostic Messages
NotYet Not Yet Implemented Functions and Unused Arguments
nrow The Number of Rows/Columns of an Array
Sys.glob Wildcard Expansion on File Paths
UseMethod Class Methods
numeric Numeric Vectors
numeric_version Numeric Versions
polyroot Find Zeros of a Real or Complex Polynomial
pos.to.env Convert Positions in the Search Path to Environments
prod Product of Vector Elements
prop.table Express Table Entries as Fraction of Marginal Table
Sys.info Extract System and User Information
Vectorize Vectorize a Scalar Function
print Print Values
QR.Auxiliaries Reconstruct the Q, R, or X Matrices from a QR Object
quit Terminate an R Session
readBin Transfer Binary Data To and From Connections
readChar Transfer Character Strings To and From Connections
save Save R Objects
readLines Read Text Lines from a Connection
readRDS Serialization Interface for Single Objects
reg.finalizer Finalization of Objects
scale Scaling and Centering of Matrix-like Objects
shQuote Quote Strings for Use in OS Shells
showConnections Display Connections
regex Regular Expressions as used in R
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
stop Stop Function Execution
sweep Sweep out Array Summaries
switch Select One of a List of Alternatives
setTimeLimit Set CPU and/or Elapsed Time Limits
sets Set Operations
append Vector Merging
apply Apply Functions Over Array Margins
slice.index Slice Indexes in an Array
slotOp Extract or Replace A Slot
strrep Repeat the Elements of a Character Vector
system Invoke a System Command
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
strsplit Split the Elements of a Character Vector
structure Attribute Specification
strwrap Wrap Character Strings to Format Paragraphs
as.data.frame Coerce to a Data Frame
as.environment Coerce to an Environment Object
base-internal Internal Objects in Package
strtoi Convert Strings to Integers
strtrim Trim Character Strings to Specified Display Widths
subset Subsetting Vectors, Matrices and Data Frames
base-package
builtins Returns the Names of All Built-in Objects
by Apply a Function to a Data Frame Split by Factors
col Column Indexes
colSums Form Row and Column Sums and Means
connections Functions to Manipulate Connections (Files, URLs, ...)
substitute Substituting and Quoting Expressions
system.time CPU Time Used
system2 Invoke a System Command
timezones Time Zones
tracemem Trace Copying of Objects
transform Transform an Object, for Example a Data Frame
warning Warning Messages
toString Convert an R Object to a Character String
weekdays Extract Parts of a POSIXt or Date Object
which Which indices are TRUE?
contributors R Project Contributors
cut.POSIXt Convert a Date or Date-Time Object to a Factor
deparse Expression Deparsing
deparseOpts Options for Expression Deparsing
dim Dimensions of an Object
warnings Print Warning Messages
.Machine Numerical Characteristics of the Machine
.Script Scripting Language Interface
cut Convert Numeric to Factor
dimnames Dimnames of an Object
eigen Spectral Decomposition of a Matrix
encodeString
zapsmall Rounding of Numbers
zpackages Listing of Packages
file.path Construct Path to File
file.show Display One or More Text Files
function Function Definition
funprog Common Higher-Order Functions in Functional Programming Languages
gettext Translate Text Messages
getwd Get or Set Working Directory
typeof The Type of an Object
unique Extract Unique Elements
grepRaw Pattern Matching for Raw Vectors
groupGeneric S3 Group Generic Functions
identity Identity Function
ifelse Conditional Element Selection
jitter Jitter
kappa Compute or Estimate the Condition Number of a Matrix
lazyLoad Lazy Load a Database of R Objects
length Length of an Object
logical Logical Vectors
lower.tri Lower and Upper Triangular Part of a Matrix
matmult Matrix Multiplication
matrix Matrices
maxCol Find Maximum Position in Matrix
mean Arithmetic Mean
norm Compute the Norm of a Matrix
normalizePath Express File Paths in Canonical Form
ns-reflect.Rd Namespace Reflection Support
ns-topenv Top Level Environment
print.data.frame Printing Data Frames
print.default Default Printing
rle Run Length Encoding
remove Remove Objects from a Specified Environment
Colon Colon Operator
Comparison Relational Operators
EnvVar Environment Variables
Extract Extract or Replace Parts of an Object
ISOdatetime Date-time Conversion Functions from Numeric Representations
Internal Call an Internal Function
round.POSIXt Round / Truncate Data-Time Objects
row Row Indexes
sequence Create A Vector of Sequences
serialize Simple Serialization Interface
Memory-limits Memory Limits in R
Memory Memory Available for Data Storage
RdUtils Utilities for Processing Rd Files
sign Sign Function
sink Send R Output to a File
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
Recall Recursive Calling
Startup Initialization at Start of an R Session
Syntax Operator Syntax and Precedence
textConnection Text Connections
tilde Tilde Operator
unlist Flatten Lists
Sys.sleep Suspend Execution for a Time Interval
Sys.time Get Current Date and Time
any Are Some Values True?
aperm Array Transposition
assignOps Assignment Operators
body Access to and Manipulation of the Body of a Function
bquote Partial substitution in expressions
c Combine Values into a Vector or List
attach Attach Set of R Objects to Search Path
call Function Calls
row+colnames Row and Column Names
commandArgs Extract Command Line Arguments
cumsum Cumulative Sums, Products, and Extremes
curlGetHeaders
debug Debug a Function
delayedAssign Delay Evaluation
dump Text Representations of R Objects
duplicated Determine Duplicate Elements
expression Unevaluated Expressions
extSoftVersion
format.info format(.) Information
unname Remove
which.min Where is the Min() or Max() or first TRUE or FALSE ?
shell Invoke a System Command, using a Shell
format.pval Format P Values
gctorture Torture Garbage Collector
get Return the Value of a Named Object
gl Generate Factor Levels
grep Pattern Matching and Replacement
interactive Is R Running Interactively?
invisible Change the Print Mode to Invisible
shell.exec Open a File or URL using Windows File Associations
with Evaluate an Expression in a Data Environment
zutils Miscellaneous Internal/Programming Utilities
is.unsorted Test if an Object is Not Sorted
is.R Are we using R, rather than S?
labels Find Labels from Object
lapply Apply a Function over a List or Vector
license The R License Terms
nargs The Number of Arguments to a Function
list Lists -- Generic and Dotted Pairs
nchar Count the Number of Characters (or Bytes or Width)
ns-internals Namespace Internals
ns-load Loading and Unloading Name Spaces
paste Concatenate Strings
path.expand Expand File Paths
pushBack Push Text Back on to a Connection
qr The QR Decomposition of a Matrix
raw Raw Vectors
readRenviron
rapply Recursively Apply a Function to a List
readline Read a Line from the Terminal
sQuote Quote Text
sample Random Samples and Permutations
seq.POSIXt Generate Regular Sequences of Times
seq Sequence Generation
sort Sorting or Ordering Vectors
source Read R Code from a File, a Connection or Expressions
stopifnot Ensure the Truth of R Expressions
strptime Date-time Conversion Functions to and from Character
substr Substrings of a Character Vector
sum Sum of Vector Elements
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
trimws Remove Leading/Trailing Whitespace
try Try an Expression Allowing Error Recovery
validUTF8
vector Vectors
withVisible Return both a Value and its Visibility
write Write Data to a File
log Logarithms and Exponentials
Logic Logical Operators
LongVectors Long Vectors
Bessel Bessel Functions
CallExternal Modern Interfaces to C/C++ code
Extremes Maxima and Minima
Foreign-internal Internal Versions of the Foreign Function Interface
NumericConstants Numeric Constants
Ops.Date Operators on the Date Class
Sys.setFileTime
Sys.setenv Set or Unset Environment Variables
Extract.data.frame Extract or Replace Parts of a Data Frame
Extract.factor Extract or Replace Parts of a Factor
La_version
Last.value Value of Last Evaluated Expression
Sys.which Find Full Paths to Executables
Trig Trigonometric Functions
Cstack_info Report Information on C Stack Size and Usage
DateTimeClasses Date-Time Classes
Primitive Look Up a Primitive Function
Quotes Quotes
Paren Parentheses and Braces
Foreign Foreign Function Interface
Hyperbolic Hyperbolic Functions
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Priority base
License Part of R 3.4.0
suggests methods
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