The R Base Package


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Documentation for package ‘base’ version 2.15.3

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A B C D E F G H I J K L M N O P Q R S T U V W X Z misc

base-package The R Base Package

-- A --

abbreviate Abbreviate Strings
abs Miscellaneous Mathematical Functions
acos Trigonometric Functions
acosh Hyperbolic Functions
addNA Factors
addTaskCallback Add or Remove a Top-Level Task Callback
agrep Approximate String Matching (Fuzzy Matching)
agrepl Approximate String Matching (Fuzzy Matching)
alist Lists - Generic and Dotted Pairs
all Are All Values True?
all.equal Test if Two Objects are (Nearly) Equal
all.names Find All Names in an Expression
all.vars Find All Names in an Expression
any Are Some Values True?
anyDuplicated Determine Duplicate Elements
anyMissing 'Not Available' / Missing Values
anyNA 'Not Available' / Missing Values
anyNA.POSIXlt Date-Time Classes
aperm Array Transposition
append Vector Merging
apply Apply Functions Over Array Margins
Arg Complex Vectors
args Argument List of a Function
Arithmetic Arithmetic Operators
array Multi-way Arrays
arrayInd Which indices are TRUE?
as.array Multi-way Arrays
as.call Function Calls
as.character Character Vectors
as.character.condition Condition Handling and Recovery
as.character.Date Date Conversion Functions to and from Character
as.character.hexmode Display Numbers in Hexadecimal
as.character.numeric_version Numeric Versions
as.character.octmode Display Numbers in Octal
as.character.POSIXt Date-time Conversion Functions to and from Character
as.character.srcref References to source files
as.complex Complex Vectors
as.data.frame Coerce to a Data Frame
as.data.frame.AsIs Coerce to a Data Frame
as.data.frame.Date Date Class
as.data.frame.numeric_version Numeric Versions
as.data.frame.POSIXct Date-Time Classes
as.data.frame.table Cross Tabulation and Table Creation
as.Date Date Conversion Functions to and from Character
as.difftime Time Intervals
as.double Double-Precision Vectors
as.double.difftime Time Intervals
as.double.POSIXlt Date-time Conversion Functions
as.environment Coerce to an Environment Object
as.expression Unevaluated Expressions
as.factor Factors
as.function Convert Object to Function
as.hexmode Display Numbers in Hexadecimal
as.integer Integer Vectors
as.list Lists - Generic and Dotted Pairs
as.list.Date Date Class
as.list.numeric_version Numeric Versions
as.list.POSIXct Date-Time Classes
as.logical Logical Vectors
as.matrix Matrices
as.matrix.noquote Class for 'no quote' Printing of Character Strings
as.matrix.POSIXlt Date-Time Classes
as.name Names and Symbols
as.null The Null Object
as.numeric Numeric Vectors
as.numeric_version Numeric Versions
as.octmode Display Numbers in Octal
as.ordered Factors
as.package_version Numeric Versions
as.pairlist Lists - Generic and Dotted Pairs
as.POSIXct Date-time Conversion Functions
as.POSIXlt Date-time Conversion Functions
as.qr The QR Decomposition of a Matrix
as.raw Raw Vectors
as.single Double-Precision Vectors
as.symbol Names and Symbols
as.table Cross Tabulation and Table Creation
as.vector Vectors
asin Trigonometric Functions
asinh Hyperbolic Functions
AsIs Inhibit Interpretation/Conversion of Objects
asS3 Test for an S4 object
asS4 Test for an S4 object
assign Assign a Value to a Name
assignOps Assignment Operators
atan Trigonometric Functions
atan2 Trigonometric Functions
atanh Hyperbolic Functions
atomic Vectors
attach Attach Set of R Objects to Search Path
attachNamespace Loading and Unloading Namespaces
attr Object Attributes
attr.all.equal Test if Two Objects are (Nearly) Equal
attributes Object Attribute Lists
autoload On-demand Loading of Packages
autoloader On-demand Loading of Packages
Autoloads On-demand Loading of Packages

-- B --

backquote Quotes
backsolve Solve an Upper or Lower Triangular System
backtick Quotes
base The R Base Package
baseenv Environment Access
basename Manipulate File Paths
Bessel Bessel Functions
bessel Bessel Functions
besselI Bessel Functions
besselJ Bessel Functions
besselK Bessel Functions
besselY Bessel Functions
beta Special Functions of Mathematics
bindenv Binding and Environment Locking, Active Bindings
bindingIsActive Binding and Environment Locking, Active Bindings
bindingIsLocked Binding and Environment Locking, Active Bindings
bindtextdomain Translate Text Messages
bitwAnd Bitwise Logical Operations
bitwNot Bitwise Logical Operations
bitwOr Bitwise Logical Operations
bitwShiftL Bitwise Logical Operations
bitwShiftR Bitwise Logical Operations
bitwXor Bitwise Logical Operations
body Access to and Manipulation of the Body of a Function
bquote Partial substitution in expressions
break Control Flow
browser Environment Browser
browserCondition Functions to Retrieve Values Supplied by Calls to the Browser
browserSetDebug Functions to Retrieve Values Supplied by Calls to the Browser
browserText Functions to Retrieve Values Supplied by Calls to the Browser
builtins Returns the Names of All Built-in Objects
by Apply a Function to a Data Frame Split by Factors
bzfile Functions to Manipulate Connections

-- C --

c Combine Values into a Vector or List
c.Date Date Class
c.noquote Class for 'no quote' Printing of Character Strings
c.numeric_version Numeric Versions
c.POSIXct Date-Time Classes
call Function Calls
callCC Call With Current Continuation
capabilities Report Capabilities of this Build of R
casefold Character Translation and Casefolding
cat Concatenate and Print
cbind Combine R Objects by Rows or Columns
cbind.data.frame Combine R Objects by Rows or Columns
ceiling Rounding of Numbers
char.expand Expand a String with Respect to a Target Table
character Character Vectors
charmatch Partial String Matching
charToRaw Convert to or from Raw Vectors
chartr Character Translation and Casefolding
check_tzones Date-Time Classes
chol The Choleski Decomposition
chol2inv Inverse from Choleski (or QR) Decomposition
choose Special Functions of Mathematics
class Object Classes
clearPushBack Push Text Back on to a Connection
clipboard Functions to Manipulate Connections
close Functions to Manipulate Connections
close.srcfile References to source files
close.srcfilealias References to source files
closeAllConnections Display Connections
closure Function Definition
code point Convert to or from UTF-8-encoded Character Vectors
col Column Indexes
collation Relational Operators
colMeans Form Row and Column Sums and Means
colnames Row and Column Names
colon Colon Operator
colSums Form Row and Column Sums and Means
commandArgs Extract Command Line Arguments
comment Query or Set a '"comment"' Attribute
Comparison Relational Operators
Complex S3 Group Generic Functions
complex Complex Vectors
computeRestarts Condition Handling and Recovery
condition Condition Handling and Recovery
conditionCall Condition Handling and Recovery
conditionCall.condition Condition Handling and Recovery
conditionMessage Condition Handling and Recovery
conditionMessage.condition Condition Handling and Recovery
conditions Condition Handling and Recovery
conflicts Search for Masked Objects on the Search Path
Conj Complex Vectors
connection Functions to Manipulate Connections
connections Functions to Manipulate Connections
Constants Built-in Constants
contributors R Project Contributors
Control Control Flow
copyright Copyrights of Files Used to Build R
copyrights Copyrights of Files Used to Build R
cos Trigonometric Functions
cosh Hyperbolic Functions
crossprod Matrix Crossproduct
Cstack_info Report Information on C Stack Size and Usage
cummax Cumulative Sums, Products, and Extremes
cummin Cumulative Sums, Products, and Extremes
cumprod Cumulative Sums, Products, and Extremes
cumsum Cumulative Sums, Products, and Extremes
cut Convert Numeric to Factor
cut.POSIXt Convert a Date or Date-Time Object to a Factor

-- D --

data.class Object Classes
data.frame Data Frames
data.matrix Convert a Data Frame to a Numeric Matrix
Date Date Class
date System Date and Time
date-time Date-Time Classes
Dates Date Class
DateTimeClasses Date-Time Classes
debug Debug a Function
debugonce Debug a Function
default.stringsAsFactors Data Frames
Defunct Marking Objects as Defunct
defunct Marking Objects as Defunct
delayedAssign Delay Evaluation
deparse Expression Deparsing
Deprecated Marking Objects as Deprecated
deprecated Marking Objects as Deprecated
det Calculate the Determinant of a Matrix
detach Detach Objects from the Search Path
determinant Calculate the Determinant of a Matrix
dget Write an Object to a File or Recreate it
diag Matrix Diagonals
diff Lagged Differences
difftime Time Intervals
digamma Special Functions of Mathematics
dim Dimensions of an Object
dimnames Dimnames of an Object
dir List the Files in a Directory/Folder
dir.create Manipulaton of Directories and File Permissions
dirname Manipulate File Paths
DISPLAY Environment Variables
DLLInfo Get DLLs Loaded in Current Session
DLLInfoList Get DLLs Loaded in Current Session
do.call Execute a Function Call
dontCheck Identity Function to Suppress Checking
double Double-Precision Vectors
dput Write an Object to a File or Recreate it
dQuote Quote Text
drop Drop Redundant Extent Information
droplevels droplevels
dump Text Representations of R Objects
duplicated Determine Duplicate Elements
duplicated.numeric_version Numeric Versions
duplicated.POSIXlt Date-Time Classes
dyn.load Foreign Function Interface
dyn.unload Foreign Function Interface

-- E --

eapply Apply a Function Over Values in an Environment
EDITOR Environment Variables
eigen Spectral Decomposition of a Matrix
else Control Flow
emptyenv Environment Access
enc2native Read or Set the Declared Encodings for a Character Vector
enc2utf8 Read or Set the Declared Encodings for a Character Vector
enclosure Environment Access
encodeString Encode Character Vector as for Printing
Encoding Read or Set the Declared Encodings for a Character Vector
enquote Substituting and Quoting Expressions
env.profile Environment Access
environment Environment Access
environment variables Environment Variables
environmentIsLocked Binding and Environment Locking, Active Bindings
environmentName Environment Access
eval Evaluate an (Unevaluated) Expression
eval.parent Evaluate an (Unevaluated) Expression
evalq Evaluate an (Unevaluated) Expression
exists Is an Object Defined?
exp Logarithms and Exponentials
expand.grid Create a Data Frame from All Combinations of Factors
expm1 Logarithms and Exponentials
expression Unevaluated Expressions
Extract Extract or Replace Parts of an Object

-- F --

F Logical Vectors
factor Factors
factorial Special Functions of Mathematics
FALSE Logical Vectors
fifo Functions to Manipulate Connections
file Functions to Manipulate Connections
file.access Ascertain File Accessibility
file.append File Manipulation
file.choose Choose a File Interactively
file.copy File Manipulation
file.create File Manipulation
file.exists File Manipulation
file.info Extract File Information
file.link File Manipulation
file.path Construct Path to File
file.remove File Manipulation
file.rename File Manipulation
file.show Display One or More Files
file.symlink File Manipulation
files File Manipulation
Filter Common Higher-Order Functions in Functional Programming Languages
finalizer Finalization of Objects
Find Common Higher-Order Functions in Functional Programming Languages
find.package Find Packages
findInterval Find Interval Numbers or Indices
findRestart Condition Handling and Recovery
finite Finite, Infinite and NaN Numbers
floor Rounding of Numbers
flush Functions to Manipulate Connections
for Control Flow
force Force Evaluation of an Argument
Foreign Foreign Function Interface
formals Access to and Manipulation of the Formal Arguments
format Encode in a Common Format
format.Date Date Conversion Functions to and from Character
format.difftime Time Intervals
format.hexmode Display Numbers in Hexadecimal
format.info format(.) Information
format.libraryIQR Loading/Attaching and Listing of Packages
format.numeric_version Numeric Versions
format.octmode Display Numbers in Octal
format.packageInfo Loading/Attaching and Listing of Packages
format.POSIXct Date-time Conversion Functions to and from Character
format.pval Format P Values
format.summaryDefault Object Summaries
formatC Formatting Using C-style Formats
formatDL Format Description Lists
forwardsolve Solve an Upper or Lower Triangular System
function Function Definition
fuzzy matching Approximate String Matching (Fuzzy Matching)

-- G --

gamma Special Functions of Mathematics
gc Garbage Collection
gc.time Report Time Spent in Garbage Collection
gcinfo Garbage Collection
gctorture Torture Garbage Collector
gctorture2 Torture Garbage Collector
get Return the Value of a Named Object
getAllConnections Display Connections
getConnection Display Connections
getDLLRegisteredRoutines Reflectance Information for C/Fortran routines in a DLL
getElement Extract or Replace Parts of an Object
geterrmessage Stop Function Execution
getHook Functions to Get and Set Hooks for Load, Attach, Detach and Unload
getLoadedDLLs Get DLLs Loaded in Current Session
getNativeSymbolInfo Obtain a Description of one or more Native (C/Fortran) Symbols
getOption Options Settings
getRversion Numeric Versions
getSrcLines References to source files
getTaskCallbackNames Query the Names of the Current Internal Top-Level Task Callbacks
gettext Translate Text Messages
gettextf Use C-style String Formatting Commands
getwd Get or Set Working Directory
gl Generate Factor Levels
globalenv Environment Access
gregexpr Pattern Matching and Replacement
grep Pattern Matching and Replacement
grepl Pattern Matching and Replacement
grepRaw Pattern Matching for Raw Vectors
group generic S3 Group Generic Functions
groupGeneric S3 Group Generic Functions
gsub Pattern Matching and Replacement
gzcon (De)compress I/O Through Connections
gzfile Functions to Manipulate Connections

-- H --

hexmode Display Numbers in Hexadecimal
HOME Environment Variables

-- I --

I Inhibit Interpretation/Conversion of Objects
iconv Convert Character Vector between Encodings
iconvlist Convert Character Vector between Encodings
icuGetCollate Setup Collation by ICU
icuSetCollate Setup Collation by ICU
identical Test Objects for Exact Equality
identity Identity Function
if Control Flow
ifelse Conditional Element Selection
Im Complex Vectors
in Control Flow
Inf Finite, Infinite and NaN Numbers
inherits Object Classes
integer Integer Vectors
interaction Compute Factor Interactions
interactive Is R Running Interactively?
internal generic Internal Generic Functions
InternalGenerics Internal Generic Functions
InternalMethods Internal Generic Functions
intersect Set Operations
intersection Set Operations
intToBits Convert to or from Raw Vectors
intToUtf8 Convert to or from UTF-8-encoded Character Vectors
inverse.rle Run Length Encoding
invisible Change the Print Mode to Invisible
invokeRestart Condition Handling and Recovery
invokeRestartInteractively Condition Handling and Recovery
is.array Multi-way Arrays
is.atomic Is an Object Atomic or Recursive?
is.call Function Calls
is.character Character Vectors
is.complex Complex Vectors
is.data.frame Coerce to a Data Frame
is.double Double-Precision Vectors
is.element Set Operations
is.environment Environment Access
is.expression Unevaluated Expressions
is.factor Factors
is.finite Finite, Infinite and NaN Numbers
is.function Is an Object of Type (Primitive) Function?
is.infinite Finite, Infinite and NaN Numbers
is.integer Integer Vectors
is.language Is an Object a Language Object?
is.list Lists - Generic and Dotted Pairs
is.loaded Foreign Function Interface
is.logical Logical Vectors
is.matrix Matrices
is.na 'Not Available' / Missing Values
is.na.numeric_version Numeric Versions
is.na.POSIXlt Date-Time Classes
is.name Names and Symbols
is.nan Finite, Infinite and NaN Numbers
is.null The Null Object
is.numeric Numeric Vectors
is.numeric.difftime Time Intervals
is.numeric_version Numeric Versions
is.object Is an Object 'internally classed'?
is.ordered Factors
is.package_version Numeric Versions
is.pairlist Lists - Generic and Dotted Pairs
is.primitive Is an Object of Type (Primitive) Function?
is.qr The QR Decomposition of a Matrix
is.R Are we using R, rather than S?
is.raw Raw Vectors
is.recursive Is an Object Atomic or Recursive?
is.single Is an Object of Single Precision Type?
is.symbol Names and Symbols
is.table Cross Tabulation and Table Creation
is.unsorted Test if an Object is Not Sorted
is.vector Vectors
isatty Display Connections
isdebugged Debug a Function
isIncomplete Functions to Manipulate Connections
ISOdate Date-time Conversion Functions from Numeric Representations
ISOdatetime Date-time Conversion Functions from Numeric Representations
isOpen Functions to Manipulate Connections
isRestart Condition Handling and Recovery
isS4 Test for an S4 object
isSeekable Functions to Reposition Connections
isSymmetric Test if a Matrix or other Object is Symmetric
isTRUE Logical Operators

-- J --

jitter 'Jitter' (Add Noise) to Numbers
julian Extract Parts of a POSIXt or Date Object

-- K --

kappa Compute or Estimate the Condition Number of a Matrix
kronecker Kronecker Products on Arrays

-- L --

l10n_info Localization Information
La.svd Singular Value Decomposition of a Matrix
labels Find Labels from Object
LANGUAGE Environment Variables
language object Is an Object a Language Object?
language objects Is an Object a Language Object?
lapply Apply a Function over a List or Vector
last.warning Print Warning Messages
La_version LAPACK version
lbeta Special Functions of Mathematics
lchoose Special Functions of Mathematics
LC_ALL Query or Set Aspects of the Locale
LC_COLLATE Query or Set Aspects of the Locale
LC_CTYPE Query or Set Aspects of the Locale
LC_MEASUREMENT Query or Set Aspects of the Locale
LC_MESSAGES Query or Set Aspects of the Locale
LC_MONETARY Query or Set Aspects of the Locale
LC_NUMERIC Query or Set Aspects of the Locale
LC_PAPER Query or Set Aspects of the Locale
LC_TIME Query or Set Aspects of the Locale
length Length of an Object
length.POSIXlt Date-Time Classes
LETTERS Built-in Constants
letters Built-in Constants
levels Levels Attributes
lfactorial Special Functions of Mathematics
lgamma Special Functions of Mathematics
library Loading/Attaching and Listing of Packages
library.dynam Loading DLLs from Packages
library.dynam.unload Loading DLLs from Packages
licence The R License Terms
license The R License Terms
list Lists - Generic and Dotted Pairs
list.dirs List the Files in a Directory/Folder
list.files List the Files in a Directory/Folder
list2env From A List, Build or Add To an Environment
load Reload Saved Datasets
loadedNamespaces Loading and Unloading Namespaces
loadNamespace Loading and Unloading Namespaces
local Evaluate an (Unevaluated) Expression
localeconv Find Details of the Numerical and Monetary Representations in the Current Locale
locales Query or Set Aspects of the Locale
lockBinding Binding and Environment Locking, Active Bindings
lockEnvironment Binding and Environment Locking, Active Bindings
log Logarithms and Exponentials
log10 Logarithms and Exponentials
log1p Logarithms and Exponentials
log2 Logarithms and Exponentials
logb Logarithms and Exponentials
Logic Logical Operators
logical Logical Vectors
long vector Long Vectors
Long vectors Long Vectors
long vectors Long Vectors
lower.tri Lower and Upper Triangular Part of a Matrix
ls List Objects

-- M --

make.names Make Syntactically Valid Names
make.unique Make Character Strings Unique
makeActiveBinding Binding and Environment Locking, Active Bindings
MAKEINDEX Environment Variables
Map Common Higher-Order Functions in Functional Programming Languages
mapply Apply a Function to Multiple List or Vector Arguments
margin.table Compute table margin
mat.or.vec Create a Matrix or a Vector
match Value Matching
match.arg Argument Verification Using Partial Matching
match.call Argument Matching
match.fun Extract a Function Specified by Name
Math S3 Group Generic Functions
Math.Date Date Class
Math.difftime Time Intervals
Math.factor Factors
Math.POSIXlt Date-Time Classes
Math.POSIXt Date-Time Classes
matmult Matrix Multiplication
matrix Matrices
max Maxima and Minima
max.col Find Maximum Position in Matrix
mean Arithmetic Mean
mean.Date Date Class
mean.difftime Time Intervals
mean.POSIXct Date-Time Classes
memCompress In-memory Compression and Decompression
memDecompress In-memory Compression and Decompression
Memory Memory Available for Data Storage
Memory-limits Memory Limits in R
memory.profile Profile the Usage of Cons Cells
merge Merge Two Data Frames
message Diagnostic Messages
mget Return the Value of a Named Object
min Maxima and Minima
missing Does a Formal Argument have a Value?
Mod Complex Vectors
mode The (Storage) Mode of an Object
month.abb Built-in Constants
months Extract Parts of a POSIXt or Date Object

-- N --

NA 'Not Available' / Missing Values
name Names and Symbols
names The Names of an Object
names.POSIXlt Date-Time Classes
NaN Finite, Infinite and NaN Numbers
nargs The Number of Arguments to a Function
NativeSymbol Obtain a Description of one or more Native (C/Fortran) Symbols
NativeSymbolInfo Obtain a Description of one or more Native (C/Fortran) Symbols
NA_character_ 'Not Available' / Missing Values
NA_complex_ 'Not Available' / Missing Values
NA_integer_ 'Not Available' / Missing Values
NA_real_ 'Not Available' / Missing Values
nchar Count the Number of Characters (or Bytes or Width)
NCOL The Number of Rows/Columns of an Array
ncol The Number of Rows/Columns of an Array
Negate Common Higher-Order Functions in Functional Programming Languages
new.env Environment Access
next Control Flow
NextMethod Class Methods
ngettext Translate Text Messages
nlevels The Number of Levels of a Factor
noquote Class for 'no quote' Printing of Character Strings
norm Compute the Norm of a Matrix
normalizePath Express File Paths in Canonical Form
NotYetImplemented Not Yet Implemented Functions and Unused Arguments
NotYetUsed Not Yet Implemented Functions and Unused Arguments
NROW The Number of Rows/Columns of an Array
nrow The Number of Rows/Columns of an Array
NULL The Null Object
numeric Numeric Vectors
NumericConstants Numeric Constants
numeric_version Numeric Versions
nzchar Count the Number of Characters (or Bytes or Width)

-- O --

objects List Objects
octmode Display Numbers in Octal
oldClass Object Classes
OlsonNames Time Zones
on.exit Function Exit Code
open Functions to Manipulate Connections
open.srcfile References to source files
open.srcfilealias References to source files
Ops S3 Group Generic Functions
Ops.Date Operators on the Date Class
Ops.difftime Time Intervals
Ops.factor Factors
Ops.numeric_version Numeric Versions
Ops.ordered Factors
Ops.POSIXt Date-Time Classes
option Options Settings
options Options Settings
order Ordering Permutation
ordered Factors
outer Outer Product of Arrays

-- P --

packageEvent Functions to Get and Set Hooks for Load, Attach, Detach and Unload
packageStartupMessage Diagnostic Messages
package_version Numeric Versions
packBits Convert to or from Raw Vectors
PAGER Environment Variables
pairlist Lists - Generic and Dotted Pairs
Paren Parentheses and Braces
parent.env Environment Access
parent.frame Functions to Access the Function Call Stack
parse Parse Expressions
paste Concatenate Strings
paste0 Concatenate Strings
path.expand Expand File Paths
path.package Find Packages
pi Built-in Constants
pipe Functions to Manipulate Connections
pmatch Partial String Matching
pmax Maxima and Minima
pmax.int Maxima and Minima
pmin Maxima and Minima
pmin.int Maxima and Minima
polyroot Find Zeros of a Real or Complex Polynomial
pos.to.env Convert Positions in the Search Path to Environments
Position Common Higher-Order Functions in Functional Programming Languages
POSIXct Date-Time Classes
POSIXlt Date-Time Classes
POSIXt Date-Time Classes
pretty Pretty Breakpoints
prettyNum Formatting Using C-style Formats
primitive Look Up a Primitive Function
print Print Values
print.AsIs Inhibit Interpretation/Conversion of Objects
print.by Apply a Function to a Data Frame Split by Factors
print.condition Condition Handling and Recovery
print.connection Functions to Manipulate Connections
print.data.frame Printing Data Frames
print.Date Date Class
print.default Default Printing
print.difftime Time Intervals
print.DLLInfo Get DLLs Loaded in Current Session
print.hexmode Display Numbers in Hexadecimal
print.libraryIQR Loading/Attaching and Listing of Packages
print.NativeRoutineList Reflectance Information for C/Fortran routines in a DLL
print.noquote Class for 'no quote' Printing of Character Strings
print.numeric_version Numeric Versions
print.octmode Display Numbers in Octal
print.packageInfo Loading/Attaching and Listing of Packages
print.POSIXct Date-Time Classes
print.proc_time Running Time of R
print.rle Run Length Encoding
print.simple.list Print Values
print.srcfile References to source files
print.srcref References to source files
print.summary.table Cross Tabulation and Table Creation
print.summaryDefault Object Summaries
print.table Print Values
print.warnings Print Warning Messages
prmatrix Print Matrices, Old-style
proc.time Running Time of R
prod Product of Vector Elements
promise Delay Evaluation
promises Delay Evaluation
prop.table Express Table Entries as Fraction of Marginal Table
psigamma Special Functions of Mathematics
pushBack Push Text Back on to a Connection
pushBackLength Push Text Back on to a Connection

-- Q --

q Terminate an R Session
qr The QR Decomposition of a Matrix
qr.coef The QR Decomposition of a Matrix
qr.default The QR Decomposition of a Matrix
qr.fitted The QR Decomposition of a Matrix
qr.Q Reconstruct the Q, R, or X Matrices from a QR Object
qr.qty The QR Decomposition of a Matrix
qr.qy The QR Decomposition of a Matrix
qr.R Reconstruct the Q, R, or X Matrices from a QR Object
qr.resid The QR Decomposition of a Matrix
qr.solve The QR Decomposition of a Matrix
qr.X Reconstruct the Q, R, or X Matrices from a QR Object
quarters Extract Parts of a POSIXt or Date Object
quit Terminate an R Session
quote Substituting and Quoting Expressions
Quotes Quotes

-- R --

R.home Return the R Home Directory
R.Version Version Information
R.version.string Version Information
Random Random Number Generation
Random.user User-supplied Random Number Generation
range Range of Values
rank Sample Ranks
rapply Recursively Apply a Function to a List
raw Raw Vectors
rawConnection Raw Connections
rawConnectionValue Raw Connections
rawShift Convert to or from Raw Vectors
rawToBits Convert to or from Raw Vectors
rawToChar Convert to or from Raw Vectors
rbind Combine R Objects by Rows or Columns
rbind.data.frame Combine R Objects by Rows or Columns
rcond Compute or Estimate the Condition Number of a Matrix
Rd2pdf Utilities for Processing Rd Files
Rdconv Utilities for Processing Rd Files
Re Complex Vectors
read.dcf Read and Write Data in DCF Format
readBin Transfer Binary Data To and From Connections
readChar Transfer Character Strings To and From Connections
readline Read a Line from the Terminal
readLines Read Text Lines from a Connection
readRDS Serialization Interface for Single Objects
readRenviron Set Environment Variables from a File
Recall Recursive Calling
Reduce Common Higher-Order Functions in Functional Programming Languages
reg.finalizer Finalization of Objects
regex Regular Expressions as used in R
regexec Pattern Matching and Replacement
regexp Regular Expressions as used in R
regexpr Pattern Matching and Replacement
RegisteredNativeSymbol Obtain a Description of one or more Native (C/Fortran) Symbols
regmatches Extract or Replace Matched Substrings
regular expression Regular Expressions as used in R
remove Remove Objects from a Specified Environment
removeTaskCallback Add or Remove a Top-Level Task Callback
Renviron Initialization at Start of an R Session
rep Replicate Elements of Vectors and Lists
rep.numeric_version Numeric Versions
repeat Control Flow
replace Replace Values in a Vector
replicate Apply a Function over a List or Vector
rep_len Replicate Elements of Vectors and Lists
require Loading/Attaching and Listing of Packages
requireNamespace Loading and Unloading Namespaces
Reserved Reserved Words in R
reserved Reserved Words in R
restartDescription Condition Handling and Recovery
restartFormals Condition Handling and Recovery
retracemem Trace Copying of Objects
return Function Definition
rev Reverse Elements
rle Run Length Encoding
rm Remove Objects from a Specified Environment
RNG Random Number Generation
RNGkind Random Number Generation
RNGversion Random Number Generation
round Rounding of Numbers
round.Date Round / Truncate Data-Time Objects
round.POSIXt Round / Truncate Data-Time Objects
row Row Indexes
row.names Get and Set Row Names for Data Frames
rowMeans Form Row and Column Sums and Means
rownames Row and Column Names
rowsum Give Column Sums of a Matrix or Data Frame, Based on a Grouping Variable
rowSums Form Row and Column Sums and Means
Rprofile Initialization at Start of an R Session
Rprofile.site Initialization at Start of an R Session
R_BATCH Environment Variables
R_BROWSER Environment Variables
R_COMPLETION Environment Variables
R_DEFAULT_PACKAGES Initialization at Start of an R Session
R_DOC_DIR Environment Variables
R_ENVIRON Initialization at Start of an R Session
R_ENVIRON_USER Initialization at Start of an R Session
R_GCTORTURE Torture Garbage Collector
R_GCTORTURE_INHIBIT_RELEASE Torture Garbage Collector
R_GCTORTURE_WAIT Torture Garbage Collector
R_GSCMD Environment Variables
R_HISTFILE Environment Variables
R_HISTSIZE Environment Variables
R_HOME Return the R Home Directory
R_ICU_LOCALE Setup Collation by ICU
R_INCLUDE_DIR Environment Variables
R_LIBS Search Paths for Packages
R_LIBS_SITE Search Paths for Packages
R_LIBS_USER Search Paths for Packages
R_PAPERSIZE Environment Variables
R_PDFVIEWER Environment Variables
R_PLATFORM Environment Variables
R_PRINTCMD Environment Variables
R_PROFILE Initialization at Start of an R Session
R_PROFILE_USER Initialization at Start of an R Session
R_RD4PDF Environment Variables
R_SHARE_DIR Environment Variables
R_system_version Numeric Versions
R_TEXI2DVICMD Environment Variables
R_UNZIPCMD Environment Variables
R_ZIPCMD Environment Variables

-- S --

S3groupGeneric S3 Group Generic Functions
S3Methods Class Methods
S4 Test for an S4 object
sample Random Samples and Permutations
sapply Apply a Function over a List or Vector
save Save R Objects
saveRDS Serialization Interface for Single Objects
scale Scaling and Centering of Matrix-like Objects
scan Read Data Values
search Give Search Path for R Objects
searchpaths Give Search Path for R Objects
seek Functions to Reposition Connections
seq Sequence Generation
seq.Date Generate Regular Sequences of Dates
seq.POSIXt Generate Regular Sequences of Times
sequence Create A Vector of Sequences
seq_along Sequence Generation
seq_len Sequence Generation
serialize Simple Serialization Interface
set.seed Random Number Generation
setdiff Set Operations
setequal Set Operations
setHook Functions to Get and Set Hooks for Load, Attach, Detach and Unload
setSessionTimeLimit Set CPU and/or Elapsed Time Limits
setTimeLimit Set CPU and/or Elapsed Time Limits
setwd Get or Set Working Directory
shell Invoke a System Command
showConnections Display Connections
shQuote Quote Strings for Use in OS Shells
sign Sign Function
signalCondition Condition Handling and Recovery
Signals Interrupting Execution of R
signif Rounding of Numbers
simpleCondition Condition Handling and Recovery
simpleError Condition Handling and Recovery
simpleMessage Condition Handling and Recovery
simpleWarning Condition Handling and Recovery
simplify2array Apply a Function over a List or Vector
sin Trigonometric Functions
single Double-Precision Vectors
sinh Hyperbolic Functions
sink Send R Output to a File
slice.index Slice Indexes in an Array
socketConnection Functions to Manipulate Connections
socketSelect Wait on Socket Connections
solve Solve a System of Equations
solve.qr The QR Decomposition of a Matrix
sort Sorting or Ordering Vectors
sort.list Ordering Permutation
source Read R Code from a File or a Connection
Special Special Functions of Mathematics
split Divide into Groups and Reassemble
split.Date Date Class
split.POSIXct Date-Time Classes
sprintf Use C-style String Formatting Commands
sqrt Miscellaneous Mathematical Functions
sQuote Quote Text
srcfile References to source files
srcfile-class References to source files
srcfilealias References to source files
srcfilealias-class References to source files
srcfilecopy References to source files
srcfilecopy-class References to source files
srcref References to source files
srcref-class References to source files
Startup Initialization at Start of an R Session
stderr Display Connections
stdin Display Connections
stdout Display Connections
stop Stop Function Execution
stopifnot Ensure the Truth of R Expressions
storage.mode The (Storage) Mode of an Object
str.POSIXt Date-Time Classes
strftime Date-time Conversion Functions to and from Character
strptime Date-time Conversion Functions to and from Character
strsplit Split the Elements of a Character Vector
strtoi Convert Strings to Integers
strtrim Trim Character Strings to Specified Display Widths
structure Attribute Specification
strwrap Wrap Character Strings to Format Paragraphs
sub Pattern Matching and Replacement
Subscript Extract or Replace Parts of an Object
subset Subsetting Vectors, Matrices and Data Frames
substitute Substituting and Quoting Expressions
substr Substrings of a Character Vector
substring Substrings of a Character Vector
sum Sum of Vector Elements
Summary S3 Group Generic Functions
summary Object Summaries
summary.connection Functions to Manipulate Connections
Summary.Date Date Class
summary.Date Date Class
Summary.difftime Time Intervals
Summary.factor Factors
Summary.numeric_version Numeric Versions
Summary.ordered Factors
Summary.POSIXct Date-Time Classes
summary.POSIXct Date-Time Classes
Summary.POSIXlt Date-Time Classes
summary.proc_time Running Time of R
summary.srcfile References to source files
summary.srcref References to source files
summary.table Cross Tabulation and Table Creation
suppressMessages Diagnostic Messages
suppressPackageStartupMessages Diagnostic Messages
suppressWarnings Warning Messages
svd Singular Value Decomposition of a Matrix
sweep Sweep out Array Summaries
switch Select One of a List of Alternatives
Syntax Operator Syntax and Precedence
Sys.chmod Manipulaton of Directories and File Permissions
Sys.Date Get Current Date and Time
Sys.getenv Get Environment Variables
Sys.getlocale Query or Set Aspects of the Locale
Sys.getpid Get the Process ID of the R Session
Sys.glob Wildcard Expansion on File Paths
Sys.info Extract System and User Information
Sys.localeconv Find Details of the Numerical and Monetary Representations in the Current Locale
sys.on.exit Functions to Access the Function Call Stack
sys.parent Functions to Access the Function Call Stack
Sys.readlink Read File Symbolic Links
Sys.setenv Set or Unset Environment Variables
Sys.setFileTime Set File Time
Sys.setlocale Query or Set Aspects of the Locale
Sys.sleep Suspend Execution for a Time Interval
sys.source Parse and Evaluate Expressions from a File
sys.status Functions to Access the Function Call Stack
Sys.time Get Current Date and Time
Sys.timezone Time Zones
Sys.umask Manipulaton of Directories and File Permissions
Sys.unsetenv Set or Unset Environment Variables
Sys.which Find Full Paths to Executables
system Invoke a System Command
system.file Find Names of R System Files
system.time CPU Time Used
system2 Invoke a System Command

-- T --

T Logical Vectors
t Matrix Transpose
table Cross Tabulation and Table Creation
tabulate Tabulation for Vectors
tan Trigonometric Functions
tanh Hyperbolic Functions
tapply Apply a Function Over a Ragged Array
taskCallbackManager Create an R-level Task Callback Manager
tcrossprod Matrix Crossproduct
tempdir Create Names for Temporary Files
tempfile Create Names for Temporary Files
textConnection Text Connections
textConnectionValue Text Connections
tilde Tilde Operator
tilde expansion Expand File Paths
time interval Time Intervals
time zone Time Zones
time zones Time Zones
timezone Time Zones
timezones Time Zones
TMPDIR Environment Variables
tolower Character Translation and Casefolding
topenv Top Level Environment
toString Convert an R Object to a Character String
toupper Character Translation and Casefolding
trace Interactive Tracing and Debugging of Calls to a Function or Method
traceback Print Call Stacks
tracemem Trace Copying of Objects
tracingState Interactive Tracing and Debugging of Calls to a Function or Method
transform Transform an Object, for Example a Data Frame
Trig Trigonometric Functions
trigamma Special Functions of Mathematics
TRUE Logical Vectors
trunc Rounding of Numbers
trunc.Date Round / Truncate Data-Time Objects
trunc.POSIXt Round / Truncate Data-Time Objects
truncate Functions to Reposition Connections
try Try an Expression Allowing Error Recovery
tryCatch Condition Handling and Recovery
type The Type of an Object
typeof The Type of an Object
TZ Time Zones
TZDIR Time Zones

-- U --

umask Manipulaton of Directories and File Permissions
unclass Object Classes
undebug Debug a Function
Unicode Convert to or from UTF-8-encoded Character Vectors
union Set Operations
unique Extract Unique Elements
unique.numeric_version Numeric Versions
unique.POSIXlt Date-Time Classes
units Time Intervals
units.difftime Time Intervals
unix.time CPU Time Used
unlink Delete Files and Directories
unlist Flatten Lists
unloadNamespace Loading and Unloading Namespaces
unlockBinding Binding and Environment Locking, Active Bindings
unname Remove 'names' or 'dimnames'
unserialize Simple Serialization Interface
unsplit Divide into Groups and Reassemble
untrace Interactive Tracing and Debugging of Calls to a Function or Method
untracemem Trace Copying of Objects
unz Functions to Manipulate Connections
upper.tri Lower and Upper Triangular Part of a Matrix
url Functions to Manipulate Connections
UseMethod Class Methods
utf8ToInt Convert to or from UTF-8-encoded Character Vectors

-- V --

vapply Apply a Function over a List or Vector
vector Vectors
Vectorize Vectorize a Scalar Function
version Version Information

-- W --

warning Warning Messages
warnings Print Warning Messages
weekdays Extract Parts of a POSIXt or Date Object
which Which indices are TRUE?
which.max Where is the Min() or Max() or first TRUE or FALSE ?
which.min Where is the Min() or Max() or first TRUE or FALSE ?
while Control Flow
with Evaluate an Expression in a Data Environment
withCallingHandlers Condition Handling and Recovery
within Evaluate an Expression in a Data Environment
withRestarts Condition Handling and Recovery
withVisible Return both a value and its visibility
write Write Data to a File
write.dcf Read and Write Data in DCF Format
writeBin Transfer Binary Data To and From Connections
writeChar Transfer Character Strings To and From Connections
writeLines Write Lines to a Connection

-- X --

xor Logical Operators
xor.hexmode Display Numbers in Hexadecimal
xor.octmode Display Numbers in Octal
xtfrm Auxiliary Function for Sorting and Ranking
xtfrm.numeric_version Numeric Versions
xzfile Functions to Manipulate Connections

-- Z --

zapsmall Rounding of Numbers

-- misc --

! Logical Operators
!.hexmode Display Numbers in Hexadecimal
!.octmode Display Numbers in Octal
!= Relational Operators
" Quotes
$ Extract or Replace Parts of an Object
$.DLLInfo Get DLLs Loaded in Current Session
$.package_version Numeric Versions
$<- Extract or Replace Parts of an Object
$<-.data.frame Extract or Replace Parts of a Data Frame
%% Arithmetic Operators
%*% Matrix Multiplication
%/% Arithmetic Operators
%in% Value Matching
%o% Outer Product of Arrays
%x% Kronecker Products on Arrays
& Logical Operators
&& Logical Operators
&.hexmode Display Numbers in Hexadecimal
&.octmode Display Numbers in Octal
' Quotes
( Parentheses and Braces
* Arithmetic Operators
** Arithmetic Operators
*.difftime Time Intervals
+ Arithmetic Operators
+.Date Operators on the Date Class
+.POSIXt Date-Time Classes
- Arithmetic Operators
-.Date Operators on the Date Class
-.POSIXt Date-Time Classes
-> Assignment Operators
->> Assignment Operators
.amatch_bounds Approximate String Matching (Fuzzy Matching)
.amatch_costs Approximate String Matching (Fuzzy Matching)
.Autoloaded On-demand Loading of Packages
.AutoloadEnv On-demand Loading of Packages
.BaseNamespaceEnv Environment Access
.bincode Bin a Numeric Vector
.C Foreign Function Interface
.Call Modern Interfaces to C/C++ code
.Class Class Methods
.colMeans Form Row and Column Sums and Means
.colSums Form Row and Column Sums and Means
.conflicts.OK Attach Set of R Objects to Search Path
.decode_numeric_version Numeric Versions
.Defunct Marking Objects as Defunct
.deparseOpts Options for Expression Deparsing
.Deprecated Marking Objects as Deprecated
.Device Lists of Open/Active Graphics Devices
.Devices Lists of Open/Active Graphics Devices
.doTrace Interactive Tracing and Debugging of Calls to a Function or Method
.dynLibs Loading DLLs from Packages
.encode_numeric_version Numeric Versions
.expand_R_libs_env_var Search Paths for Packages
.External Modern Interfaces to C/C++ code
.find.package Find Packages
.First Initialization at Start of an R Session
.First.sys Initialization at Start of an R Session
.Fortran Foreign Function Interface
.Generic Class Methods
.GlobalEnv Environment Access
.Group S3 Group Generic Functions
.handleSimpleError Condition Handling and Recovery
.Internal Call an Internal Function
.isOpen References to source files
.kappa_tri Compute or Estimate the Condition Number of a Matrix
.kronecker Kronecker Products on Arrays
.Last Terminate an R Session
.Last.lib Hooks for Namespace Events
.Last.sys Terminate an R Session
.Last.value Value of Last Evaluated Expression
.leap.seconds Date-Time Classes
.libPaths Search Paths for Packages
.Library Search Paths for Packages
.Library.site Search Paths for Packages
.Machine Numerical Characteristics of the Machine
.makeMessage Diagnostic Messages
.make_numeric_version Numeric Versions
.Method Class Methods
.noGenerics Loading/Attaching and Listing of Packages
.NotYetImplemented Not Yet Implemented Functions and Unused Arguments
.NotYetUsed Not Yet Implemented Functions and Unused Arguments
.onAttach Hooks for Namespace Events
.onDetach Hooks for Namespace Events
.onLoad Hooks for Namespace Events
.onUnload Hooks for Namespace Events
.Options Options Settings
.OptRequireMethods Initialization at Start of an R Session
.packages Listing of Packages
.packageStartupMessage Diagnostic Messages
.path.package Find Packages
.Platform Platform Specific Variables
.Primitive Look Up a Primitive Function
.Random.seed Random Number Generation
.Renviron Initialization at Start of an R Session
.rowMeans Form Row and Column Sums and Means
.rowSums Form Row and Column Sums and Means
.Rprofile Initialization at Start of an R Session
.S3PrimitiveGenerics Internal Generic Functions
.signalSimpleWarning Condition Handling and Recovery
.standard_regexps Miscellaneous Internal/Programming Utilities
.Traceback Print Call Stacks
.userHooksEnv Functions to Get and Set Hooks for Load, Attach, Detach and Unload
.__H__.cbind Combine R Objects by Rows or Columns
.__H__.rbind Combine R Objects by Rows or Columns
/ Arithmetic Operators
/.difftime Time Intervals
0x1 Numeric Constants
1i Numeric Constants
1L Numeric Constants
: Colon Operator
:: Double Colon and Triple Colon Operators
::: Double Colon and Triple Colon Operators
< Relational Operators
<- Assignment Operators
<<- Assignment Operators
<= Relational Operators
= Assignment Operators
== Relational Operators
> Relational Operators
>= Relational Operators
@ Extract Slots
[ Extract or Replace Parts of an Object
[.AsIs Inhibit Interpretation/Conversion of Objects
[.data.frame Extract or Replace Parts of a Data Frame
[.Date Date Class
[.difftime Time Intervals
[.factor Extract or Replace Parts of a Factor
[.hexmode Display Numbers in Hexadecimal
[.listof Extract or Replace Parts of an Object
[.noquote Class for 'no quote' Printing of Character Strings
[.numeric_version Numeric Versions
[.octmode Display Numbers in Octal
[.POSIXct Date-Time Classes
[.POSIXlt Date-Time Classes
[.simple.list Extract or Replace Parts of an Object
[.warnings Print Warning Messages
[<- Extract or Replace Parts of an Object
[<-.data.frame Extract or Replace Parts of a Data Frame
[<-.Date Date Class
[<-.factor Extract or Replace Parts of a Factor
[<-.POSIXct Date-Time Classes
[<-.POSIXlt Date-Time Classes
[[ Extract or Replace Parts of an Object
[[.data.frame Extract or Replace Parts of a Data Frame
[[.Date Date Class
[[.factor Extract or Replace Parts of a Factor
[[.numeric_version Numeric Versions
[[.POSIXct Date-Time Classes
^ Arithmetic Operators
` Quotes
{ Parentheses and Braces
| Logical Operators
|.hexmode Display Numbers in Hexadecimal
|.octmode Display Numbers in Octal
|| Logical Operators
~ Tilde Operator