The R base package

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

! Logical Operators

!= Relational Operators

$ Extract or Replace Parts of an Object

$<- Extract or Replace Parts of an Object

%% Arithmetic Operators

%*% Matrix Multiplication

%/% Arithmetic Operators

%in% Value Matching

%o% Outer Product of Arrays

%x% Kronecker Product of Arrays

& Logical Operators

&& Logical Operators

* Arithmetic Operators

+ Arithmetic Operators

- Arithmetic Operators

-> Assign a Value to a Name

->> Assign a Value to a Name

.Alias Create Alias (Pointer) to R Object

.Autoloaded Loading and Listing of Packages

.AutoloadEnv On-demand Loading of Packages

.C Foreign Function Interface

.Call Foreign Function Interface

.Class Internal and Group Methods and Generic Functions

.Defunct Defunct Functions

.Deprecated Deprecated Functions

.Device Control Multiple Devices

.Devices Control Multiple Devices

.Dyn.libs Loading Shared Libraries

.External Foreign Function Interface

.First Initialization at Start of an R Session

.First.lib Loading and Listing of Packages

.Fortran Foreign Function Interface

.Generic Internal and Group Methods and Generic Functions

.GlobalEnv Environment Access

.Group Internal and Group Methods and Generic Functions

.Internal Call an Internal Function

.Last Terminate an R Session

.Last.value Value of Last Evaluated Expression

.lib.loc Loading and Listing of Packages

.Library Loading and Listing of Packages

.Machine Machine Characteristics

.Method Internal and Group Methods and Generic Functions

.NotYetImplemented Not Yet Implemented Functions and Unused Arguments

.NotYetUsed Not Yet Implemented Functions and Unused Arguments

.Options Options Settings

.packages Loading and Listing of Packages

.Pars Set or Query Graphical Parameters

.Pars.readonly Set or Query Graphical Parameters

.Platform Platform Specific Variables

.PostScript.Options PostScript Graphics

.Primitive Call a ``Primitive'' Internal Function

.Provided Loading and Listing of Packages

.Random.seed Random Number Generation

.Rprofile Initialization at Start of an R Session

.Traceback Print Call Stack of Last Error

/ Arithmetic Operators

: Sequence Generation

< Relational Operators

<- Assign a Value to a Name

<<- Assign a Value to a Name

<= Relational Operators

== Relational Operators

> Relational Operators

>= Relational Operators

? Documentation

-- A --

abbreviate	Abbreviate Strings
abline	Add a Straight Line to a Plot
abs	Miscellaneous Mathematical Functions
acos	Trigonometric Functions
acosh	Hyperbolic Functions
add.scope	Compute Allowed Changes in Adding to or Dropping from a Formula
add1	Add or Drop All Possible Single Terms to a Model
add1.default	Add or Drop All Possible Single Terms to a Model
add1.glm	Add or Drop All Possible Single Terms to a Model
add1.lm	Add or Drop All Possible Single Terms to a Model
add1.mlm	Add or Drop All Possible Single Terms to a Model
aggregate	Compute Summary Statistics of Data Subsets
aggregate.data.frame	Compute Summary Statistics of Data Subsets
aggregate.default	Compute Summary Statistics of Data Subsets
aggregate.ts	Compute Summary Statistics of Data Subsets
airmiles	Commercial Airline Mileage
airquality	New York Air Quality Measurements
alias	Find Aliases (Dependencies) in a Model
alias.formula	Find Aliases (Dependencies) in a Model
alias.lm	Find Aliases (Dependencies) in a Model
alist	Lists -- Generic and Dotted Pairs
all	Are All Values True?
all.equal	Test if Two Objects are (Nearly) Equal
all.equal.character	Test if Two Objects are (Nearly) Equal
all.equal.default	Test if Two Objects are (Nearly) Equal
all.equal.factor	Test if Two Objects are (Nearly) Equal
all.equal.formula	Test if Two Objects are (Nearly) Equal
all.equal.language	Test if Two Objects are (Nearly) Equal
all.equal.list	Test if Two Objects are (Nearly) Equal
all.equal.numeric	Test if Two Objects are (Nearly) Equal
all.names	Find All Names in an Expression
all.vars	Find All Names in an Expression
anova	Anova Tables
anova.glm	Accessing Generalized Linear Model Fits
anova.glm.null	Accessing Generalized Linear Model Fits
anova.glmlist	Accessing Generalized Linear Model Fits
anova.lm	Accessing Linear Model Fits
anova.lm.null	Accessing Linear Model Fits
anova.mlm	Anova Tables
anovalist.lm	Accessing Linear Model Fits
anscombe	Anscombe's Quartet of ``Identical'' Simple Linear Regressions
any	Are Values True?
aov	Fit an Analysis of Variance Model
aperm	Array Transposition
append	Vector Merging
apply	Apply Functions Over Array Margins
approx	Interpolation Functions
approxfun	Interpolation Functions
approx[fun]	Interpolation Functions
apropos	Find Objects by (Partial) Name
Arg	Complex Vectors
args	Argument List of a Function
Arithmetic	Arithmetic Operators
array	Multi-way Arrays
arrows	Add Arrows to a Plot
as.array	Multi-way Arrays
as.call	Function Calls
as.character	Character Vectors
as.character.default	Character Vectors
as.complex	Complex Vectors
as.complex.default	Complex Vectors
as.data.frame	Data Frames
as.data.frame.AsIs	Data Frames
as.data.frame.character	Data Frames
as.data.frame.complex	Data Frames
as.data.frame.data.frame	Data Frames
as.data.frame.default	Data Frames
as.data.frame.factor	Data Frames
as.data.frame.integer	Data Frames
as.data.frame.list	Data Frames
as.data.frame.logical	Data Frames
as.data.frame.matrix	Data Frames
as.data.frame.model.matrix	Data Frames
as.data.frame.numeric	Data Frames
as.data.frame.ordered	Data Frames
as.data.frame.ts	Data Frames
as.data.frame.vector	Data Frames
as.double	Double Precision Vectors
as.double.default	Double Precision Vectors
as.expression	Unevaluated Expressions
as.expression.default	Unevaluated Expressions
as.factor	Factors
as.formula	Model Formulae
as.function	Convert Object to Function
as.function.default	Convert Object to Function
as.integer	Integer Vectors
as.integer.default	Integer Vectors
as.list	Lists -- Generic and Dotted Pairs
as.list.data.frame	Lists -- Generic and Dotted Pairs
as.list.default	Lists -- Generic and Dotted Pairs
as.logical	Logical Vectors
as.logical.default	Logical Vectors
as.matrix	Matrices
as.matrix.data.frame	Matrices
as.matrix.default	Matrices
as.matrix.noquote	Class for ``no quote'' Printing of Strings
as.name	Variable Names
as.null	The Null Object
as.null.default	The Null Object
as.numeric	Numeric Vectors
as.ordered	Factors
as.pairlist	Lists -- Generic and Dotted Pairs
as.qr	The QR Decomposition of a Matrix
as.real	Real Vectors
as.single	Double Precision Vectors
as.single.default	Double Precision Vectors
as.ts	Time-Series Objects
as.vector	Vectors
as.vector.factor	Vectors
asin	Trigonometric Functions
asinh	Hyperbolic Functions
assign	Assign a Value to a Name
atan	Trigonometric Functions
atan2	Trigonometric Functions
atanh	Hyperbolic Functions
attach	Attach Set of R Objects to Search Path
attenu	The Joyner-Boore Attenuation Data
attitude	Attitudes Toward Supervisors
attr	Object Attributes
attr.all.equal	Test if Two Objects are (Nearly) Equal
attr<-	Object Attributes
attributes	Object Attribute Lists
attributes<-	Object Attribute Lists
autoload	On-demand Loading of Packages
autoloader	On-demand Loading of Packages
ave	Group Averages Over Level Combinations of Factors
axis	Add an Axis to a Plot

-- B --

backsolve	Solve an Upper or Lower Triangular System
barplot	Bar Plots
barplot.default	Bar Plots
basename	File Manipulation
BATCH	Batch Execution of R
Bessel	Bessel Functions
bessel	Bessel Functions
besselI	Bessel Functions
besselJ	Bessel Functions
besselK	Bessel Functions
besselY	Bessel Functions
Beta	The Beta Distribution
beta	Special Functions of Mathematics
Binomial	The Binomial Distribution
binomial	Family Objects for Models
body	Access to and Manipulation of the Body of a Function
body<-	Access to and Manipulation of the Body of a Function
box	Draw a Box around a Plot
boxplot	Box Plots
boxplot.default	Box Plots
boxplot.formula	Formula Notation for Boxplots
boxplot.stats	Box Plot Statistics
break	Control Flow
browser	Environment Browser
bug.report	Send a Bug Report
bxp	Box Plots from Summaries

-- C --

C	Sets Contrasts for a Factor
c	Combine Values into a Vector or List
call	Function Calls
cars	Stopping Distances of Cars
case.names	Case and Variable Names of Fitted Models
case.names.default	Case and Variable Names of Fitted Models
case.names.lm	Case and Variable Names of Fitted Models
case/variable.names	Case and Variable Names of Fitted Models
cat	Concatenate and Print
category	Defunct Functions
Cauchy	The Cauchy Distribution
cbind	Combine Columns/Rows into a Matrix
cbind.data.frame	Combine Columns/Rows into a Matrix
ceiling	Rounding of Numbers
character	Character Vectors
charmatch	Partial String Matching
check.options	Set Options with Consistency Checks
chickwts	Chicken Weights by Feed Type
chisq.test	Pearson's Chi-square Test for Count Data
Chisquare	The (non-central) Chi-Square Distribution
chol	The Choleski Decomposition
chol2inv	Inverse from Choleski Decomposition
choose	Special Functions of Mathematics
chull	Compute Convex Hull of a Set of Points
class	Object Classes
class<-	Object Classes
close.screen	Creating and Controlling Multiple Screens on a Single Device
close.socket	Close a Socket
cm	Graphical Units
cm.colors	Color Palettes
co.intervals	Conditioning Plots
co2	Mauna Loa Atmospheric CO2 Concentration
codes	Factor Codes
codes.factor	Factor Codes
codes.ordered	Factor Codes
codes<-	Factor Codes
coef	Extract Model Coefficients
coef.aov	Extract Model Coefficients
coef.default	Extract Model Coefficients
coef.glm	Extract Model Coefficients
coef.listof	Extract Model Coefficients
coef.lm	Extract Model Coefficients
coefficients	Extract Model Coefficients
coefficients.glm	Accessing Generalized Linear Model Fits
coefficients.lm	Accessing Linear Model Fits
col	Column Indexes
colnames	Row and Columnn Names
colnames<-	Row and Columnn Names
colors	Color Names
colours	Color Names
commandArgs	Extract Command Line Arguments
comment	Query or Set a `Comment' Attribute
comment<-	Query or Set a `Comment' Attribute
Comparison	Relational Operators
COMPILE	Compile Files for Use with R
complete.cases	Find Complete Cases
complex	Complex Vectors
conflicts	Search for Masked Objects on the Search Path
Conj	Complex Vectors
Constants	Built-in Constants
contour	Display Contours
contr.helmert	Contrast Matrices
contr.poly	Contrast Matrices
contr.sum	Contrast Matrices
contr.treatment	Contrast Matrices
Contrast	Contrast Matrices
contrasts	Get and Set Contrast Matrices
contrasts<-	Get and Set Contrast Matrices
contrib.url	Download Packages from CRAN
contributors	R Project Contributors
Control	Control Flow
convolve	Fast Convolution
cooks.distance	Regression Diagnostics
coplot	Conditioning Plots
copy.url	Read Data and Code from a Web Server
copyright	Copyrights of Files Used to Build R
copyrights	Copyrights of Files Used to Build R
cor	Correlation and Covariance Matrices
cos	Trigonometric Functions
cosh	Hyperbolic Functions
count.fields	Count the Number of Fields per Line
cov	Correlation and Covariance Matrices
cov.wt	Weighted Covariance Matrices
covratio	Regression Diagnostics
CRAN.packages	Download Packages from CRAN
crossprod	Matrix Crossproduct
cummax	Cumulative Sums, Products, etc.
cummin	Cumulative Sums, Products, etc.
cumprod	Cumulative Sums, Products, etc.
cumsum	Cumulative Sums, Products, etc.
curve	Draw Function Plots
cut	Convert Numeric to Factor
cut.default	Convert Numeric to Factor
cycle	Sampling Times of Time Series
cycle.default	Sampling Times of Time Series
cycle.ts	Sampling Times of Time Series

-- D --

D	Symbolic and Algorithmic Derivatives of Simple Expressions
data	Data Sets
data.class	Object Classes
data.entry	Spreadsheet Interface for Entering Data
data.frame	Data Frames
data.matrix	Data Frame to Numeric Matrix
dataentry	Spreadsheet Interface for Entering Data
date	System Date and Time
dbeta	The Beta Distribution
dbinom	The Binomial Distribution
dcauchy	The Cauchy Distribution
dchisq	The (non-central) Chi-Square Distribution
de	Spreadsheet Interface for Entering Data
de.ncols	Spreadsheet Interface for Entering Data
de.restore	Spreadsheet Interface for Entering Data
de.setup	Spreadsheet Interface for Entering Data
debug	Debug a function
Defunct	Defunct Functions
delay	Delay Evaluation
delete.response	Modify Terms Objects
deltat	Sampling Times of Time Series
deltat.default	Sampling Times of Time Series
demo	Demonstrations of R functions
density	Kernel Density Estimation
deparse	Expression Deparsing
Deprecated	Deprecated Functions
deriv	Symbolic and Algorithmic Derivatives of Simple Expressions
deriv.default	Symbolic and Algorithmic Derivatives of Simple Expressions
deriv.formula	Symbolic and Algorithmic Derivatives of Simple Expressions
detach	Detach Objects from the Search Path
dev.control	Copy Graphics Between Multiple Devices
dev.copy	Copy Graphics Between Multiple Devices
dev.cur	Control Multiple Devices
dev.list	Control Multiple Devices
dev.next	Control Multiple Devices
dev.off	Control Multiple Devices
dev.prev	Control Multiple Devices
dev.print	Copy Graphics Between Multiple Devices
dev.set	Control Multiple Devices
dev.xxx	Control Multiple Devices
dev2	Copy Graphics Between Multiple Devices
dev2bitmap	Copy Graphics Device to Bitmap File
deviance	Model Deviance
deviance.default	Model Deviance
deviance.glm	Model Deviance
deviance.lm	Model Deviance
deviance.mlm	Model Deviance
device	List of Graphical Devices
Devices	List of Graphical Devices
dexp	The Exponential Distribution
df	The F Distribution
df.residual	Residual Degrees-of-Freedom
df.residual.glm	Accessing Generalized Linear Model Fits
df.residual.lm	Accessing Linear Model Fits
dfbetas	Regression Diagnostics
dffits	Regression Diagnostics
dgamma	The Gamma Distribution
dgeom	The Geometric Distribution
dget	Write an Internal Object to a File
dhyper	The Hypergeometric Distribution
diag	Matrix Diagonals
diag<-	Matrix Diagonals
diff	Lagged Differences
diff.default	Lagged Differences
digamma	Special Functions of Mathematics
dim	Dimensions of an Object
dim.data.frame	Dimensions of an Object
dim<-	Dimensions of an Object
dimnames	Dimnames of an Object
dimnames.data.frame	Dimnames of an Object
dimnames<-	Dimnames of an Object
dimnames<-.data.frame	Dimnames of an Object
dir	List the Files in a Directory/Folder
dir.create	File Manipulation
dirname	File Manipulation
discoveries	Numbers of Important Discoveries
dlnorm	The Log Normal Distribution
dlogis	The Logistic Distribution
dnbinom	The Negative Binomial Distribution
dnchisq	Defunct Functions
dnorm	The Normal Distribution
do.call	Execute a Function Call
dotplot	Cleveland Dot Plots
double	Double Precision Vectors
download.file	Download Packages from CRAN
download.packages	Download Packages from CRAN
dpois	The Poisson Distribution
dput	Write an Internal Object to a File
drop	Drop Redundant Extent Information
drop.scope	Compute Allowed Changes in Adding to or Dropping from a Formula
drop.terms	Modify Terms Objects
drop1	Add or Drop All Possible Single Terms to a Model
drop1.default	Add or Drop All Possible Single Terms to a Model
drop1.glm	Add or Drop All Possible Single Terms to a Model
drop1.lm	Add or Drop All Possible Single Terms to a Model
drop1.mlm	Add or Drop All Possible Single Terms to a Model
dsignrank	Distribution of the Wilcoxon Signed Rank Statistic
dt	The Student t Distribution
dummy.coef	Extract Coefficients in Original Coding
dummy.coef.aovlist	Extract Coefficients in Original Coding
dummy.coef.lm	Extract Coefficients in Original Coding
dump	Text Representations of R Objects
dunif	The Uniform Distribution
duplicated	Determine Duplicate Elements
dweibull	The Weibull Distribution
dwilcox	Distribution of the Wilcoxon Rank Sum Statistic
dyn.load	Foreign Function Interface
dyn.unload	Foreign Function Interface
dynload	Foreign Function Interface

-- E --

edit	Invoke a Text Editor
eff.aovlist	Compute Efficiencies of Multistratum Analysis of Variance
effects	Effects from Fitted Model
effects.glm	Effects from Fitted Model
effects.lm	Effects from Fitted Model
eigen	Spectral Decomposition of a Matrix
else	Control Flow
emacs	Invoke a Text Editor
end	Encode the Terminal Times of Time Series
end.default	Encode the Terminal Times of Time Series
environment	Environment Access
environment<-	Environment Access
erase.screen	Creating and Controlling Multiple Screens on a Single Device
esoph	Smoking, Alcohol and (O)esophageal Cancer
euro	Euro Conversion Rates
euro.cross	Euro Conversion Rates
eurodist	Distances Between Cities in Europe
eval	Evaluate an (Unevaluated) Expression
eval.parent	Evaluate an (Unevaluated) Expression
evalq	Evaluate an (Unevaluated) Expression
example	Run an Examples Section from the Online Help
exists	Is an Object Defined?
exp	Logarithms and Exponentials
expand.grid	Create a Data Frame from All Combinations of Factors
Exponential	The Exponential Distribution
expression	Unevaluated Expressions
Extract	Extract or Replace Parts of an Object
extractAIC	Extract AIC from a Fitted Model
extractAIC.aov	Extract AIC from a Fitted Model
extractAIC.coxph	Extract AIC from a Fitted Model
extractAIC.glm	Extract AIC from a Fitted Model
extractAIC.lm	Extract AIC from a Fitted Model
extractAIC.negbin	Extract AIC from a Fitted Model
extractAIC.survreg	Extract AIC from a Fitted Model
Extremes	Maxima and Minima

-- F --

F	Logical Vectors
factor	Factors
factor.scope	Compute Allowed Changes in Adding to or Dropping from a Formula
faithful	Old Faithful Geyser Data
FALSE	Logical Vectors
family	Family Objects for Models
family.glm	Accessing Generalized Linear Model Fits
family.lm	Accessing Linear Model Fits
FDist	The F Distribution
fft	Fast Discrete Fourier Transform
file	File Manipulation
file.append	File Manipulation
file.choose	Choose a File Interactively
file.create	File Manipulation
file.exists	File Manipulation
file.path	Construct Path to File
file.remove	File Manipulation
file.show	Display One or More Files
filled.contour	Level (Contour) Plots
find	Find Objects by (Partial) Name
fitted	Extract Model Fitted Values
fitted.default	Extract Model Fitted Values
fitted.glm	Extract Model Fitted Values
fitted.lm	Extract Model Fitted Values
fitted.values	Extract Model Fitted Values
fitted.values.glm	Accessing Generalized Linear Model Fits
fitted.values.lm	Accessing Linear Model Fits
fivenum	Tukey Five-Number Summaries
fix	Fix an Object
floor	Rounding of Numbers
for	Control Flow
Foreign	Foreign Function Interface
Formaldehyde	Determination of Formaldehyde
formals	Access to and Manipulation of the Formal Arguments
formals<-	Access to and Manipulation of the Formal Arguments
format	Encode in a Common Format
format.char	Flexible Formatting
format.default	Encode in a Common Format
format.info	format(.) Information
format.pval	Encode in a Common Format
formatC	Flexible Formatting
formula	Model Formulae
formula.data.frame	Model Formulae
formula.default	Model Formulae
formula.formula	Model Formulae
formula.lm	Accessing Linear Model Fits
formula.terms	Model Formulae
forwardsolve	Solve an Upper or Lower Triangular System
frame	Create / Start a New Plot Frame
freeny	Freeny's Revenue Data
frequency	Sampling Times of Time Series
frequency.default	Sampling Times of Time Series
function	Function Definition

-- G --

Gamma	Family Objects for Models
gamma	Special Functions of Mathematics
gammaCody	Bessel Functions
GammaDist	The Gamma Distribution
gaussian	Family Objects for Models
gc	Garbage Collection
gcinfo	Garbage Collection
gctorture	Torture Garbage Collector
Geometric	The Geometric Distribution
get	Return a Variable's Value
getenv	Get Environment Variables
getwd	Get or Set Working Directory
gl	Generate Factor Levels
glm	Fitting Generalized Linear Models
glm.control	Fitting Generalized Linear Models
glm.fit	Fitting Generalized Linear Models
glm.fit.null	Fitting Generalized Linear Models
glm.summaries	Accessing Generalized Linear Model Fits
globalenv	Environment Access
GNOME	GNOME Desktop Graphics Device
Gnome	GNOME Desktop Graphics Device
gnome	GNOME Desktop Graphics Device
graphics.off	Control Multiple Devices
gray	Gray Level Specification
grep	Pattern Matching and Replacement
grid	Add Grid to a Plot
gsub	Pattern Matching and Replacement

-- H --

HairEyeColor	Hair and Eye Color of Statistics Students
hasTsp	Tsp Attribute of Time-Series-like Objects
hat	Regression Diagnostics
hdf5	Interface to the HDF5 Library
hdf5load	Interface to the HDF5 Library
hdf5save	Interface to the HDF5 Library
heat.colors	Color Palettes
help	Documentation
help.search	Search the Help System
help.start	Hypertext Documentation
hist	Histograms
hist.default	Histograms
hsv	HSV Color Specification
Hyperbolic	Hyperbolic Functions
Hypergeometric	The Hypergeometric Distribution

-- I --

I	Model Formulae
identify	Identify Points in a Scatter Plot
identify.default	Identify Points in a Scatter Plot
if	Control Flow
ifelse	Conditional Element Selection
Im	Complex Vectors
image	Display a Color Image
index.search	Search Indices for Help Files
Inf	Finite, Infinite and NaN Numbers
infert	Infertility after Spontaneous and Induced Abortion
influence.measures	Regression Diagnostics
inherits	Object Classes
InsectSprays	Effectiveness of Insect Sprays
INSTALL	Install Add-on Packages
install.packages	Download Packages from CRAN
installed.packages	Download Packages from CRAN
integer	Integer Vectors
interaction	Compute Factor Interactions
interactive	Is R Running Interactively?
Internal	Call an Internal Function
intersect	Set Operations
inverse.gaussian	Family Objects for Models
invisible	Change the Print Mode to Invisible
IQR	The Interquartile Range
iris	Edgar Anderson's Iris Data
iris3	Edgar Anderson's Iris Data
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	Data Frames
is.double	Double Precision Vectors
is.element	Set Operations
is.empty.model	Check if a Model is Empty
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 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.data.frame	Not Available / ``Missing'' Values
is.name	Variable Names
is.nan	Finite, Infinite and NaN Numbers
is.null	The Null Object
is.numeric	Numeric Vectors
is.object	Is an Object ``internally classed''?
is.ordered	Factors
is.pairlist	Lists -- Generic and Dotted Pairs
is.qr	The QR Decomposition of a Matrix
is.R	Are we using R, rather than S?
is.real	Real Vectors
is.recursive	Is an Object Atomic or Recursive?
is.single	Is an Object of Single Precision Type?
is.ts	Time-Series Objects
is.vector	Vectors
islands	Areas of the World's Major Landmasses

-- J --

jitter

Add `Jitter' (Noise) to Numbers

-- K --

kappa	Estimate the Condition Number
kappa.default	Estimate the Condition Number
kappa.lm	Estimate the Condition Number
kappa.qr	Estimate the Condition Number
kappa.tri	Estimate the Condition Number
kronecker	Kronecker Product of Arrays

-- L --

labels	Find Labels from Object
labels.default	Find Labels from Object
labels.lm	Find Labels from Object
labels.terms	Find Labels from Object
lapply	Apply a Function over a List or Vector
Last.value	Value of Last Evaluated Expression
layout	Specifying Complex Plot Arrangements
layout.show	Specifying Complex Plot Arrangements
lbeta	Special Functions of Mathematics
lchoose	Special Functions of Mathematics
lcm	Specifying Complex Plot Arrangements
legend	Add Legends to Plots
length	Length of a Vector or List
length<-	Length of a Vector or List
LETTERS	Built-in Constants
letters	Built-in Constants
levels	Levels Attributes
levels.factor	Factor Levels Assignment
levels<-	Levels Attributes
levels<-.default	Levels Attributes
levels<-.factor	Factor Levels Assignment
lgamma	Special Functions of Mathematics
library	Loading and Listing of Packages
library.dynam	Loading Shared Libraries
licence	The R License Terms
license	The R License Terms
LifeCycleSavings	Intercountry Life-Cycle Savings Data
lines	Add Connected Line Segments to a Plot
lines.default	Add Connected Line Segments to a Plot
lines.ts	Time-Series Objects
list	Lists -- Generic and Dotted Pairs
list.files	List the Files in a Directory/Folder
lm	Fitting Linear Models
lm.fit	Fitting Linear Models
lm.fit.null	Fitting Linear Models
lm.influence	Regression Diagnostics
lm.summaries	Accessing Linear Model Fits
lm.wfit	Fitting Linear Models
lm.wfit.null	Fitting Linear Models
load	Reload Saved Datasets
local	Evaluate an (Unevaluated) Expression
locator	Graphical Input
Log	Logarithms and Exponentials
log	Logarithms and Exponentials
log10	Logarithms and Exponentials
log2	Logarithms and Exponentials
Logic	Logical Operators
logical	Logical Vectors
Logistic	The Logistic Distribution
loglin	Fitting Log-Linear Models
Lognormal	The Log Normal Distribution
longley	Longley's Regression Data
lower.tri	Lower and Upper Triangular Part of a Matrix
lowess	Scatter Plot Smoothing
ls	List Objects
ls.diag	Compute Diagnostics for `lsfit' Regression Results
ls.print	Print `lsfit' Regression Results
ls.str	Compactly Display the Structure of an Arbitrary R Object
lsf.str	Compactly Display the Structure of an Arbitrary R Object
lsfit	Find the Least Squares Fit

-- M --

Machine	Machine Characteristics
machine	Determine the Machine R is Running On
mad	Median Absolute Deviation
mahalanobis	Mahalanobis Distance
make.link	Create a Link for GLM families
make.names	Make Legal R Names Out of Strings
make.socket	Create a Socket Connection
make.tables	Create model.tables
make.tables.aovproj	Create model.tables
make.tables.aovprojlist	Create model.tables
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	Function Verification for ``Function Variables''
Math	Miscellaneous Mathematical Functions
Math.data.frame	Internal and Group Methods and Generic Functions
Math.factor	Internal and Group Methods and Generic Functions
matlines	Plot Columns of Matrices
matmult	Matrix Multiplication
matplot	Plot Columns of Matrices
matpoints	Plot Columns of Matrices
matrix	Matrices
max	Maxima and Minima
mean	Arithmetic Mean
mean.default	Arithmetic Mean
median	Median Value
Memory	Memory Available for Data Storage
memory.profile	Profile the Usage of Cons Cells
menu	Menu Interaction Function
Methods	Internal and Group Methods and Generic Functions
methods	Class Methods
min	Maxima and Minima
missing	Does a Formal Argument have a Value?
Mod	Complex Vectors
mode	The (Storage) Mode of an Object
mode<-	The (Storage) Mode of an Object
model.extract	Extract Components from a Model Frame
model.frame	Extracting the ``Environment'' of a Model Formula
model.frame.aovlist	Extracting the ``Environment'' of a Model Formula
model.frame.default	Extracting the ``Environment'' of a Model Formula
model.frame.glm	Extracting the ``Environment'' of a Model Formula
model.frame.lm	Extracting the ``Environment'' of a Model Formula
model.matrix	Construct Design Matrices
model.matrix.default	Construct Design Matrices
model.matrix.glm.null	Construct Design Matrices
model.matrix.lm	Construct Design Matrices
model.matrix.lm.null	Construct Design Matrices
model.offset	Extract Components from a Model Frame
model.response	Extract Components from a Model Frame
model.tables	Compute Tables of Results from an Aov Model Fit.
model.tables.aov	Compute Tables of Results from an Aov Model Fit.
model.tables.aovlist	Compute Tables of Results from an Aov Model Fit.
model.weights	Construct Design Matrices
month.abb	Built-in Constants
month.name	Built-in Constants
mosaicplot	Mosaic Plots
mosaicplot.default	Mosaic Plots
mosaicplot.formula	Mosaic Plots
mtcars	Motor Trend Road Tests
mtext	Write Text into the Margins of a Plot
mvfft	Fast Discrete Fourier Transform

-- N --

NA	Not Available / ``Missing'' Values
na.action	NA Action
na.action.default	NA Action
na.fail	Handle Missing Values in Objects
na.fail.default	Handle Missing Values in Objects
na.omit	Handle Missing Values in Objects
na.omit.default	Handle Missing Values in Objects
name	Variable Names
names	The Names Attribute of an Object
names.default	The Names Attribute of an Object
names<-	The Names Attribute of an Object
names<-.default	The Names Attribute of an Object
NaN	Finite, Infinite and NaN Numbers
nargs	The Number of Arguments to a Function
nchar	Count the Number of Characters
NCOL	The Number of Rows/Columns of an Array
ncol	The Number of Rows/Columns of an Array
NegBinomial	The Negative Binomial Distribution
new.env	Environment Access
next	Control Flow
NextMethod	Class Methods
nextn	Highly Composite Numbers
nhtemp	Average Yearly Temperatures in New Haven
nlevels	The Number of Levels of a Factor
nlm	Non-Linear Minimization
noquote	Class for ``no quote'' Printing of Strings
Normal	The Normal Distribution
NotYet	Not Yet Implemented Functions and Unused Arguments
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

-- O --

objects	List Objects
offset	Include an Offset in a Model Formula
on.exit	Function Exit Code
Ops.data.frame	Internal and Group Methods and Generic Functions
Ops.factor	Internal and Group Methods and Generic Functions
Ops.ordered	Internal and Group Methods and Generic Functions
optimise	One Dimensional Optimization
optimize	One Dimensional Optimization
options	Options Settings
OrchardSprays	Potency of Orchard Sprays
order	Ordering Permutation
ordered	Factors
outer	Outer Product of Arrays

-- P --

package.contents	Package Contents and Description
package.description	Package Contents and Description
page	Invoke a Pager on an R Object
pairlist	Lists -- Generic and Dotted Pairs
pairs	Scatterplot Matrices
pairs.default	Scatterplot Matrices
pairs.formula	Formula Notation for Scatterplot Matrices
palette	Set or View the Graphics Palette
Palettes	Color Palettes
panel.smooth	Simple Panel Plot
par	Set or Query Graphical Parameters
Paren	Parentheses and Braces
parent.frame	Functions to Access the Function Call Stack
parse	Parse Expressions
parse.dcf	Parse Debian Control File Format
paste	Concatenate Strings
pbeta	The Beta Distribution
pbinom	The Binomial Distribution
pcauchy	The Cauchy Distribution
pchisq	The (non-central) Chi-Square Distribution
pentagamma	Special Functions of Mathematics
persp	Perspective Plots
pexp	The Exponential Distribution
pf	The F Distribution
pgamma	The Gamma Distribution
pgeom	The Geometric Distribution
phones	The World's Telephones
phyper	The Hypergeometric Distribution
pi	Built-in Constants
pico	Invoke a Text Editor
pictex	A PicTeX Graphics Driver
piechart	Pie Charts
PlantGrowth	Results from an Experiment on Plant Growth
Platform	Platform Specific Variables
plnorm	The Log Normal Distribution
plogis	The Logistic Distribution
plot	Generic X-Y Plotting
plot.data.frame	Data Frames
plot.default	The Default Scatterplot Function
plot.density	Kernel Density Estimation
plot.factor	Plotting Factor Variables
plot.formula	Formula Notation for Scatterplots
plot.function	Draw Function Plots
plot.lm	Plot Diagnostics for an "lm" Object
plot.mlm	Accessing Linear Model Fits
plot.mts	Time-Series Objects
plot.new	Create / Start a New Plot Frame
plot.ts	Time-Series Objects
plot.window	Set up World Coordinates for Graphics Window
plot.xy	Basic Internal Plot Function
plotmath	Mathematical Annotation in R
pmatch	Partial String Matching
pmax	Maxima and Minima
pmin	Maxima and Minima
pnbinom	The Negative Binomial Distribution
pnchisq	Defunct Functions
pnorm	The Normal Distribution
points	Add Points to a Plot
points.default	Add Points to a Plot
Poisson	The Poisson Distribution
poisson	Family Objects for Models
poly	Compute Orthogonal Polynomials
polygon	Polygon Drawing
polyroot	Find Zeros of a Real or Complex Polynomial
postscript	PostScript Graphics
power	Create a Power Link Object
ppoints	Ordinates for Probability Plotting
ppois	The Poisson Distribution
precip	Annual Precipitation in US Cities
predict	Model Predictions
predict.glm	Predict Method for GLM Fits
predict.lm	Predicting from Linear Model Fits
predict.mlm	Predicting from Linear Model Fits
preplot	Pre-computations for a Plotting Objeect
presidents	Approval Rating of US Presidents
pressure	Vapor Pressure of Mercury as a Function of Temperature
pretty	Pretty Breakpoints
Primitive	Call a ``Primitive'' Internal Function
print	Print Values
print.anova	Anova Tables
print.anova.glm	Defunct Functions
print.anova.lm	Defunct Functions
print.aov	Fit an Analysis of Variance Model
print.aovlist	Fit an Analysis of Variance Model
print.atomic	Default Printing
print.coefmat	Print Coefficient Matrices
print.data.frame	Data Frames
print.default	Default Printing
print.density	Kernel Density Estimation
print.dummy.coef	Extract Coefficients in Original Coding
print.dummy.coef.list	Extract Coefficients in Original Coding
print.factor	Print Values
print.family	Family Objects for Models
print.formula	Model Formulae
print.glm	Accessing Generalized Linear Model Fits
print.glm.null	Accessing Generalized Linear Model Fits
print.htest	Print Values
print.infl	Regression Diagnostics
print.listof	Print Values
print.lm	Accessing Linear Model Fits
print.lm.null	Accessing Linear Model Fits
print.matrix	Print Matrices
print.mtable	Find Aliases (Dependencies) in a Model
print.noquote	Class for ``no quote'' Printing of Strings
print.ordered	Print Values
print.plot	Defunct Functions
print.simple.list	Print Values
print.socket	Create a Socket Connection
print.summary.aov	Fit an Analysis of Variance Model
print.summary.aovlist	Fit an Analysis of Variance Model
print.summary.glm	Accessing Generalized Linear Model Fits
print.summary.glm.null	Accessing Generalized Linear Model Fits
print.summary.lm	Accessing Linear Model Fits
print.summary.lm.null	Accessing Linear Model Fits
print.table	Print Values
print.tables.aov	Compute Tables of Results from an Aov Model Fit.
print.tabular	Defunct Functions
print.terms	Model Terms
print.ts	Time-Series Objects
prmatrix	Print Matrices
proc.time	Running Time of R
prod	Product of Vector Elements
profile	Generic Function for Profiling Models
proj	Projections of Models
proj.aov	Projections of Models
proj.aovlist	Projections of Models
proj.default	Projections of Models
proj.lm	Projections of Models
prompt	Produce Prototype of an R Documentation File
prompt.data.frame	Produce Prototype of an R Documentation File
prompt.default	Produce Prototype of an R Documentation File
prop.test	Test for Equal or Given Proportions
provide	Loading and Listing of Packages
ps.options	PostScript Graphics
psignrank	Distribution of the Wilcoxon Signed Rank Statistic
pt	The Student t Distribution
ptukey	The Studentized Range Distribution
punif	The Uniform Distribution
pweibull	The Weibull Distribution
pwilcox	Distribution of the Wilcoxon Rank Sum Statistic

-- Q --

q	Terminate an R Session
qbeta	The Beta Distribution
qbinom	The Binomial Distribution
qcauchy	The Cauchy Distribution
qchisq	The (non-central) Chi-Square Distribution
qexp	The Exponential Distribution
qf	The F Distribution
qgamma	The Gamma Distribution
qgeom	The Geometric Distribution
qhyper	The Hypergeometric Distribution
qlnorm	The Log Normal Distribution
qlogis	The Logistic Distribution
qnbinom	The Negative Binomial Distribution
qnchisq	Defunct Functions
qnorm	The Normal Distribution
qpois	The Poisson Distribution
qqline	Quantile-Quantile Plots
qqnorm	Quantile-Quantile Plots
qqplot	Quantile-Quantile Plots
qr	The QR Decomposition of a Matrix
QR.Auxiliaries	Reconstruct the Q, R, or X Matrices from a QR Object
qr.coef	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
qsignrank	Distribution of the Wilcoxon Signed Rank Statistic
qt	The Student t Distribution
qtukey	The Studentized Range Distribution
quakes	Locations of Earthquakes off Fiji
quantile	Sample Quantiles
quantile.default	Sample Quantiles
quasi	Family Objects for Models
quit	Terminate an R Session
qunif	The Uniform Distribution
quote	Substituting and Quoting Expressions
qweibull	The Weibull Distribution
qwilcox	Distribution of the Wilcoxon Rank Sum Statistic

-- R --

R.home	Return the R Home Directory
R.Version	Version Information
R.version	Version Information
R.version.string	Version Information
rainbow	Color Palettes
Random	Random Number Generation
randu	Random Numbers from Congruential Generator
range	Range of Values
range.default	Range of Values
rank	Sample Ranks
rbeta	The Beta Distribution
rbind	Combine Columns/Rows into a Matrix
rbind.data.frame	Combine Columns/Rows into a Matrix
rbinom	The Binomial Distribution
rcauchy	The Cauchy Distribution
rchisq	The (non-central) Chi-Square Distribution
Re	Complex Vectors
read.fwf	Read Fixed Width Format Files
read.socket	Read from or Write to a Socket
read.table	Data Input
read.table.url	Read Data and Code from a Web Server
readline	Read a Line from the Terminal
real	Real Vectors
Recall	Recursive Calling
rect	Draw a Rectangle
reformulate	Modify Terms Objects
regexpr	Pattern Matching and Replacement
relevel	Reorder Levels of Factor
relevel.default	Reorder Levels of Factor
relevel.factor	Reorder Levels of Factor
relevel.ordered	Reorder Levels of Factor
REMOVE	Remove Add-on Packages
remove	Remove Objects from a Specified Environment
rep	Replicate Elements
repeat	Control Flow
replace	Replace Values in a Vector
replications	Number of Replications of Terms
require	Loading and Listing of Packages
resid	Extract Model Residuals
residuals	Extract Model Residuals
residuals.default	Extract Model Residuals
residuals.glm	Accessing Generalized Linear Model Fits
residuals.lm	Accessing Linear Model Fits
restart	Restart an Expression
return	Function Definition
rev	Reverse a Vector's Elements
rexp	The Exponential Distribution
rf	The F Distribution
rgamma	The Gamma Distribution
rgb	RGB Color Specification
rgeom	The Geometric Distribution
RHOME	R Home Directory
rhyper	The Hypergeometric Distribution
rivers	Lengths of Major North American Rivers
rle	Run Length Encoding
rlnorm	The Log Normal Distribution
rlogis	The Logistic Distribution
rm	Remove Objects from a Specified Environment
rnbinom	The Negative Binomial Distribution
rnchisq	Defunct Functions
RNG	Random Number Generation
RNGkind	Random Number Generation
rnorm	The Normal Distribution
Round	Rounding of Numbers
round	Rounding of Numbers
row	Row Indexes
row.names	Data Frames
row.names<-	Data Frames
row/colnames	Row and Columnn Names
rownames	Row and Columnn Names
rownames<-	Row and Columnn Names
rowsum	Give Row Sums of a Matrix, Based on a Grouping Variable
rpois	The Poisson Distribution
Rprofile	Initialization at Start of an R Session
rsignrank	Distribution of the Wilcoxon Signed Rank Statistic
rstandard	Regression Diagnostics
rstudent	Regression Diagnostics
rt	The Student t Distribution
rug	Add a Rug to a Plot
runif	The Uniform Distribution
rweibull	The Weibull Distribution
rwilcox	Distribution of the Wilcoxon Rank Sum Statistic
R_HOME	R Home Directory
R_LIBS	Loading and Listing of Packages

-- S --

sample	Random Samples and Permutations
sapply	Apply a Function over a List or Vector
save	Save R Objects
save.image	Save R Objects
save.plot	Defunct Functions
scale	Scaling and Centering of Matrices
scan	Read Data Values
scan.url	Read Data and Code from a Web Server
screen	Creating and Controlling Multiple Screens on a Single Device
sd	Standard Deviation
se.aov	Internal Functions Used by model.tables
se.aovlist	Internal Functions Used by model.tables
se.contrast	Standard Errors for Contrasts in Model Terms
se.contrast.aov	Standard Errors for Contrasts in Model Terms
se.contrast.aovlist	Standard Errors for Contrasts in Model Terms
search	Give Search Path for R Objects
segments	Add Line Segments to a Plot
seq	Sequence Generation
seq.default	Sequence Generation
sequence	Create A Vector of Sequences
setdiff	Set Operations
sets	Set Operations
setwd	Get or Set Working Directory
SHLIB	Build Shared Library for Dynamic Loading
show.data	Data Sets
sign	Sign Function
signif	Rounding of Numbers
SignRank	Distribution of the Wilcoxon Signed Rank Statistic
sin	Trigonometric Functions
single	Double Precision Vectors
sinh	Hyperbolic Functions
sink	Send R Output to a File
sleep	Students' Sleep Data
solve	Solve a System of Equations
solve.default	Solve a System of Equations
solve.qr	Solve a System of Equations
sort	Sort a Vector
sort.list	Ordering Permutation
source	Redirect Input
source.url	Read Data and Code from a Web Server
Special	Special Functions of Mathematics
spline	Interpolating Splines
splinefun	Interpolating Splines
spline[fun]	Interpolating Splines
split	Divide into Groups
split.data.frame	Divide into Groups
split.default	Divide into Groups
split.screen	Creating and Controlling Multiple Screens on a Single Device
sqrt	Miscellaneous Mathematical Functions
stackloss	Brownlee's Stack Loss Plant Data
stars	Star Plots and Segment Diagrams of Multivariate Data
start	Encode the Terminal Times of Time Series
start.default	Encode the Terminal Times of Time Series
Startup	Initialization at Start of an R Session
stat.anova	GLM Anova Statistics
state	States of the U.S.A.
state.abb	States of the U.S.A.
state.area	States of the U.S.A.
state.center	States of the U.S.A.
state.division	States of the U.S.A.
state.name	States of the U.S.A.
state.region	States of the U.S.A.
state.x77	States of the U.S.A.
stem	Stem-and-Leaf Plots
step	Choose a model by AIC in a Stepwise Algorithm
stop	Stop Function Execution
storage.mode	The (Storage) Mode of an Object
storage.mode<-	The (Storage) Mode of an Object
str	Compactly Display the Structure of an Arbitrary R Object
str.data.frame	Compactly Display the Structure of an Arbitrary R Object
str.default	Compactly Display the Structure of an Arbitrary R Object
strheight	Plotting Dimensions of Character Strings and Math Expressions
stripplot	1-D Scatter Plots
strsplit	Split the Strings in a Vector
structure	Attribute Specification
strwidth	Plotting Dimensions of Character Strings and Math Expressions
sub	Pattern Matching and Replacement
Subscript	Extract or Replace Parts of an Object
subset	Subsetting Vectors and Data Frames
subset.data.frame	Subsetting Vectors and Data Frames
subset.default	Subsetting Vectors and Data Frames
substitute	Substituting and Quoting Expressions
substr	Extract Substrings from a Character Vector
substring	Extract Substrings from a Character Vector
sum	Sum of Vector Elements
summary	Object Summaries
summary.aov	Fit an Analysis of Variance Model
summary.aovlist	Fit an Analysis of Variance Model
Summary.data.frame	Internal and Group Methods and Generic Functions
summary.data.frame	Object Summaries
summary.default	Object Summaries
Summary.factor	Internal and Group Methods and Generic Functions
summary.factor	Object Summaries
summary.glm	Accessing Generalized Linear Model Fits
summary.glm.null	Accessing Generalized Linear Model Fits
summary.infl	Regression Diagnostics
summary.lm	Accessing Linear Model Fits
summary.lm.null	Accessing Linear Model Fits
summary.matrix	Object Summaries
summary.mlm	Accessing Linear Model Fits
sunflowerplot	Produce a Sunflower Scatter Plot
sunspots	Monthly Mean Relative Sunspot Numbers
svd	Singular Value Decomposition of a Matrix
sweep	Sweep out Array Summaries
swiss	Swiss Fertility and Socioeconomic Indicators (1888) Data
switch	Select One of a List of Alternatives
symbol.C	Foreign Function Interface
symbol.For	Foreign Function Interface
symbols	Not Yet Implemented Functions and Unused Arguments
symnum	Symbolic Number Coding
sys.call	Functions to Access the Function Call Stack
sys.calls	Functions to Access the Function Call Stack
sys.frame	Functions to Access the Function Call Stack
sys.frames	Functions to Access the Function Call Stack
sys.function	Functions to Access the Function Call Stack
sys.nframe	Functions to Access the Function Call Stack
sys.on.exit	Functions to Access the Function Call Stack
sys.parent	Functions to Access the Function Call Stack
sys.parents	Functions to Access the Function Call Stack
sys.status	Functions to Access the Function Call Stack
system	Invoke a System Command
system.file	Find Names of R System Files
system.test	Defunct Functions
system.time	CPU Time Used

-- T --

T	Logical Vectors
t	Matrix Transpose
t.data.frame	Matrix Transpose
t.default	Matrix Transpose
t.test	Student's t-Test
table	Cross Tabulation
tabulate	Tabulation for Vectors
tan	Trigonometric Functions
tanh	Hyperbolic Functions
tapply	Apply a Function Over a ``Ragged'' Array
TDist	The Student t Distribution
tempfile	Create Unique Names for (Temporary) Files
terms	Model Terms
terms.aovlist	Model Terms
terms.default	Model Terms
terms.formula	Model Terms
terms.terms	Model Terms
terrain.colors	Color Palettes
tetragamma	Special Functions of Mathematics
text	Add Text to a Plot
text.default	Add Text to a Plot
time	Sampling Times of Time Series
time.default	Sampling Times of Time Series
time.ts	Sampling Times of Time Series
Titanic	Survival of passengers on the Titanic
title	Plot Annotation
ToothGrowth	The Effect of Vitamin C on Tooth Growth in Guinea Pigs
topo.colors	Color Palettes
trace	Trace All Calls to a Function.
traceback	Print Call Stack of Last Error
transform	Transform an Object, e.g. a Data Frame
transform.data.frame	Transform an Object, e.g. a Data Frame
transform.default	Transform an Object, e.g. a Data Frame
trees	Girth, Height and Volume for Black Cherry Trees
Trig	Trigonometric Functions
trigamma	Special Functions of Mathematics
TRUE	Logical Vectors
trunc	Rounding of Numbers
trunc.default	Rounding of Numbers
ts	Time-Series Objects
tsp	Tsp Attribute of Time-Series-like Objects
tsp<-	Tsp Attribute of Time-Series-like Objects
Tukey	The Studentized Range Distribution
typeof	The Type of an Object

-- U --

UCBAdmissions	Student Admissions at UC Berkeley
unclass	Object Classes
undebug	Debug a function
undoc	Find Undocumented Objects
Uniform	The Uniform Distribution
union	Set Operations
unique	Extract Unique Elements
uniroot	One Dimensional Root Finding
units	Graphical Units
unix	Invoke a System Command
unix.time	CPU Time Used
unlink	Delete Files and Directories
unlist	Flatten Lists
unname	Remove `names' or `dimnames'
untrace	Trace All Calls to a Function.
update	Update and Re-fit a Model Call
update.default	Update and Re-fit a Model Call
update.formula	Model Updating
update.packages	Download Packages from CRAN
upper.tri	Lower and Upper Triangular Part of a Matrix
url.show	Read Data and Code from a Web Server
USArrests	Violent Crime Rates by US State
UseMethod	Class Methods
USJudgeRatings	Lawyers' Ratings of State Judges in the US Superior Court
USPersonalExpenditure	Personal Expenditure Data
uspop	The Population of the United States

-- V --

VADeaths	Death Rate Data
var	Covariance Matrices
variable.names	Case and Variable Names of Fitted Models
variable.names.default	Case and Variable Names of Fitted Models
variable.names.lm	Case and Variable Names of Fitted Models
vector	Vectors
Version	Defunct Functions
version	Version Information
vi	Invoke a Text Editor
volcano	Topographic Information for the Maunga Whau Volcano

-- W --

warning	Warning Messages
warnings	Print Warning Messages
warpbreaks	The Number of Breaks in Yarn during Weaving
Weibull	The Weibull Distribution
weighted.mean	Weighted Arithmetic Mean
weighted.residuals	Computed Weighted Residuals
weights	Accessing Linear Model Fits
weights.default	Accessing Linear Model Fits
weights.lm	Accessing Linear Model Fits
which	Which indices are TRUE ?
while	Control Flow
Wilcoxon	Distribution of the Wilcoxon Rank Sum Statistic
window	Time Windows
window.default	Time Windows
window.ts	Time Windows
women	Average Heights and Weights for American Women
write	Write Data to a File
write.socket	Read from or Write to a Socket
write.table	Data Output

-- X --

X11	X Window System Graphics
x11	X Window System Graphics
xedit	Invoke a Text Editor
xemacs	Invoke a Text Editor
xinch	Graphical Units
xor	Logical Operators
xpdrows.data.frame	Data Frames
xy.coords	Extracting Plotting Structures
xyinch	Graphical Units

-- Y --

yinch

Graphical Units

-- Z --

zapsmall	Rounding of Numbers
zip.file.extract	Extract File from a Zip Archive

-- misc --

[	Extract or Replace Parts of an Object
[.data.frame	Extract or Replace Parts of an Object
[.factor	Extract or Replace Parts of an Object
[.formula	Extract or Replace Parts of an Object
[.noquote	Extract or Replace Parts of an Object
[.ts	Extract or Replace Parts of an Object
[<-	Extract or Replace Parts of an Object
[<-.data.frame	Extract or Replace Parts of an Object
[<-.factor	Extract or Replace Parts of an Object
[<-.noquote	Extract or Replace Parts of an Object
[[	Extract or Replace Parts of an Object
[[.data.frame	Extract or Replace Parts of an Object
[[<-	Extract or Replace Parts of an Object
[[<-.data.frame	Extract or Replace Parts of an Object
^	Arithmetic Operators
\|	Logical Operators
\|\|	Logical Operators
~	Model Formulae