# 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
. | Not Yet Implemented Functions and Unused Arguments
... | Defunct Functions
.Alias | Create ``Alias'' (Pointer) to \R Object
.Autoloaded | Loading and Listing of Packages
.AutoloadEnv | On-demand loading of packages
.C | 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
.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 | Invoke a System Command
.PostScript.Options | PostScript Graphics
.Primitive | Call a ``Primitive'' Internal Function
.Provided | Loading and Listing of Packages
.Random.seed | Random Number Generation
.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
acid | Determination of Formaldehyde
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 / Any Values True?
all | Are All / Any Values True?
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 | Accessing Linear Model Fits
anovalist.lm | Accessing Linear Model Fits
anscombe | Anscombe's Quartet of ``Identical'' Simple Linear Regressions
any | Are All / Any 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<- | 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
BATCH | Batch Execution of R
bees | Potency of Orchard Sprays
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.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
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 Coefficents
coef.aov | Extract Model Coefficents
coef.default | Extract Model Coefficents
coef.glm | Extract Model Coefficents
coef.listof | Extract Model Coefficents
coef.lm | Extract Model Coefficents
coefficients | Extract Model Coefficents
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
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
consume | Personal Expenditure Data
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
contributors | R Project Contributors
Control | Control Flow
convolve | Fast Convolution
cooks.distance | Regression Diagnostics
coplot | Conditioning Plots
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
crimes | Violent Crime Rates by US State
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

## -- 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 | Print the 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
deaths | Death Rate Data
debug | Debug a function
Defunct | Defunct Functions
delay | Delay Evaluation
delete.response | Modify terms objects
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 \R objects from 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
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
discoveries | Numbers of Important Discoveries
dlnorm | The Log Normal Distribution
dlogis | The Logistic Distribution
dnbinom | The Negative Binomial Distribution
dnchisq | The Non-Central Chi-Square Distribution
dnorm | The Normal Distribution
do.call | Execute a Function Call
dotplot | Cleveland Dot Plots
double | Double Precision Vectors
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

## -- 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 | Sampling Times of Time-Series
end.default | Sampling Times of Time-Series
end.ts | Sampling 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
evalq | Evaluate an (Unevaluated) Expression
example | Run an Examples section from the online help
exists | Is a Variable 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.create | File manipulation
file.exists | File manipulation
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
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
frequency.ts | 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
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
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 --

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.start | Hypertext Documentation
hist | Histograms
hist.default | Histograms
hsv | HSV Color Specification
Hyperbolic | Hyperbolic Functions
Hypergeometric | The Hypergeometric Distribution

## -- I --

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
insects | Effectiveness of Insect Sprays
INSTALL | Install Add-on Packages
integer | Integer Vectors
interaction | Compute Factor Interactions
interactive | Is \R running interactively ?
Internal | Call an Internal Function
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.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.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
judges | Lawyer's rating's of State Judges in the Superior Court.

## -- K --

kappa | Estimate the Condition Number of a Matrix, QR Decomposition or Fit
kappa.default | Estimate the Condition Number of a Matrix, QR Decomposition or Fit
kappa.lm | Estimate the Condition Number of a Matrix, QR Decomposition or Fit
kappa.qr | Estimate the Condition Number of a Matrix, QR Decomposition or Fit
kappa.tri | Estimate the Condition Number of a Matrix, QR Decomposition or Fit
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
layout | Specifying complex plot arrangements
layout.show | Specifying complex plot arrangements
lbeta | Special Functions of Mathematics
lchoose | Special Functions of Mathematics
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 | Factor Levels
levels<- | Levels Attributes
levels<-.factor | Factor Levels
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
lines | Add Connected Line Segments to a Plot
lines.default | Add Connected Line Segments to a Plot
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
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
macintosh | Macintosh Quickdraw Graphics
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
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.lm | 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.
month.abb | Built-in Constants
month.name | Built-in Constants
mosaicplot | 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 Data Frames
na.omit | Handle Missing Values in Data Frames
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
NChisquare | The Non-Central Chi-Square Distribution
NCOL | The Number of Rows/Columns of an Array
ncol | The Number of Rows/Columns of an Array
NegBinomial | The Negative Binomial Distribution
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
order | Ordering Permutation
ordered | Factors
outer | Outer Product of Arrays

## -- P --

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
parse | Parse Expressions
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
pigs | The Effect of Vitamin C on Tooth Growth in Guinea Pigs
plants | Results from an Experiment on Plant Growth
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 | Not Yet Implemented Functions and Unused Arguments
plot.mlm | Accessing Linear Model Fits
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
pmatch | Partial String Matching
pmax | Maxima and Minima
pmin | Maxima and Minima
pnbinom | The Negative Binomial Distribution
pnchisq | The Non-Central Chi-Square Distribution
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 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
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 | Accessing Generalized Linear Model Fits
print.anova.lm | Deprecated Functions
print.aov | Fit an Analysis of Variance Model
print.aovlist | Fit an Analysis of Variance Model
print.atomic | Default Printing
print.coefmat | Print Coefficients' Matrices
print.data.frame | Data Frames
print.default | Default Printing
print.density | Kernel Density Estimation
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 | Deprecated Functions
print.simple.list | Print Values
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 | Deprecated Functions
print.terms | Model Terms
print.ts | Time-Series Objects
prmatrix | Print matrices
proc.time | Running Time of R
prod | Product of Vector Elements
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.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 | The Non-Central Chi-Square Distribution
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.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
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
readline | Read a Line from the Terminal
real | Real Vectors
Recall | Recursive Calling of Itself
rect | Draw a Rectangle
reformulate | Modify terms objects
relevel | 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
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
RLIBS | Loading and Listing of Packages
rlnorm | The Log Normal Distribution
rlogis | The Logistic Distribution
rm | Remove Objects from a Specified Environment
rnbinom | The Negative Binomial Distribution
rnchisq | The Non-Central Chi-Square Distribution
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
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

## -- S --

sample | Random Samples and Permutations
sapply | Apply a Function Over a List
save | Save \R Objects
save.image | Save \R Objects
save.plot | Deprecated Functions
savings | Intercountry Life-Cycle Savings Data
scale | Scaling and Centering of Matrices
scan | Read Data Values
screen | Creating and Controlling Multiple Screens on a Single Device
sd | Standard Deviation
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 Arrows to a Plot
seq | Sequence Generation
seq.default | Sequence Generation
sequence | Create A Vector of Sequences
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
sinh | Hyperbolic Functions
sink | Send \R Output to a File
sleep | Student's 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
source | Redirect Input
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
start | Sampling Times of Time-Series
start.default | Sampling Times of Time-Series
start.ts | Sampling 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
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.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
title | Plot Annotation
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 dataframe
transform.data.frame | Transform an object, e.g. a dataframe
transform.default | Transform an object, e.g. a dataframe
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 | Sampling Times of Time-Series
tsp<- | Sampling Times of Time-Series
Tukey | The Studentized Range Distribution
typeof | The Type of an Object

## -- U --

unclass | Object Classes
undebug | Debug a function
Uniform | The Uniform Distribution
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
unlist | Flatten Lists
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.glm | Update a [G]LM Model
update.lm | Update a [G]LM Model
upper.tri | Lower and Upper Triangular Part of a Matrix
UseMethod | Class Methods
uspop | The Population of the United States

## -- V --

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 | Version Information
version | Version Information
vi | Invoke a Text Editor
volcano | Topographic Information for the Maunga Whau Volcano

## -- W --

warning | Warning Messages
warpbreaks | The Number of Breaks in Yarn during Weaving
Weibull | The Weibull Distribution
weighted.mean | Weighted Arithmetic Mean
weights | 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
windows | List of Graphical Devices
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
[ | 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 | Class for ``no quote'' Printing of Strings
[.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
[[ | 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