Learn R Programming

⚠️There's a newer version (1.1-12) of this package.Take me there.

VGAM (version 1.1-6)

Vector Generalized Linear and Additive Models

Description

An implementation of about 6 major classes of statistical regression models. The central algorithm is Fisher scoring and iterative reweighted least squares. At the heart of this package are the vector generalized linear and additive model (VGLM/VGAM) classes. VGLMs can be loosely thought of as multivariate GLMs. VGAMs are data-driven VGLMs that use smoothing. The book "Vector Generalized Linear and Additive Models: With an Implementation in R" (Yee, 2015) gives details of the statistical framework and the package. Currently only fixed-effects models are implemented. Many (100+) models and distributions are estimated by maximum likelihood estimation (MLE) or penalized MLE. The other classes are RR-VGLMs (reduced-rank VGLMs), quadratic RR-VGLMs, reduced-rank VGAMs, RCIMs (row-column interaction models)---these classes perform constrained and unconstrained quadratic ordination (CQO/UQO) models in ecology, as well as constrained additive ordination (CAO). Hauck-Donner effect detection is implemented. Note that these functions are subject to change; see the NEWS and ChangeLog files for latest changes.

Copy Link

Version

Install

install.packages('VGAM')

Monthly Downloads

42,087

Version

1.1-6

License

GPL-3

Maintainer

Last Published

February 14th, 2022

Functions in VGAM (1.1-6)

AB.Ab.aB.ab

The AB-Ab-aB-ab Blood Group System
AR1EIM

Computation of the Exact EIM of an Order-1 Autoregressive Process
dAR1

The AR-1 Autoregressive Process
A1A2A3

The A1A2A3 Blood Group System
AR1

Autoregressive Process with Order-1 Family Function
AICvlm

Akaike's Information Criterion
AA.Aa.aa

The AA-Aa-aa Blood Group System
ABO

The ABO Blood Group System
Coef

Computes Model Coefficients and Quantities
BICvlm

Bayesian Information Criterion
Huggins89.t1

Table 1 of Huggins (1989)
Coef.rrvglm

Returns Important Matrices etc. of a RR-VGLM Object
Coef.rrvglm-class

Class ``Coef.rrvglm''
Coef.qrrvglm-class

Class ``Coef.qrrvglm''
Coef.qrrvglm

Returns Important Matrices etc. of a QO Object
CommonVGAMffArguments

Common VGAM Family Function Arguments
Coef.vlm

Extract Model Coefficients for VLM Objects
Influence

Influence Function (S4 generic) of a Fitted Model
Links

Link functions for VGLM/VGAM/etc. families
Opt

Optimums
Max

Maximums
MNSs

The MNSs Blood Group System
Rcim

Mark the Baseline of Row and Column on a Matrix data
Inv.gaussian

The Inverse Gaussian Distribution
R2latvar

R-squared for Latent Variable Models
KLD

Kullback-Leibler Divergence
Rank

Rank
Pareto

The Pareto Distribution
SurvS4

Create a Survival Object
SurvS4-class

Class "SurvS4"
SURff

Seemingly Unrelated Regressions Family Function
TIC

Takeuchi's Information Criterion
Select

Select Variables for a Formula Response or the RHS of a Formula
V2

V2 Missile Hits in London
Qvar

Quasi-variances Preprocessing Function
auuc

Auckland University Undergraduate Counts Data
acat

Ordinal Regression with Adjacent Categories Probabilities
anova.vglm

Analysis of Deviance for Vector Generalized Linear Model Fits
V1

V1 Flying-Bombs Hits in London
UtilitiesVGAM

Utility Functions for the VGAM Package
VGAM-package

Vector Generalized Linear and Additive Models and Associated Models
alaplaceUC

The Laplace Distribution
alaplace

Asymmetric Laplace Distribution Family Functions
amlexponential

Exponential Regression by Asymmetric Maximum Likelihood Estimation
Tol

Tolerances
amlbinomial

Binomial Logistic Regression by Asymmetric Maximum Likelihood Estimation
Benford

Benford's Distribution
betabinomialff

Beta-binomial Distribution Family Function
backPain

Data on Back Pain Prognosis, from Anderson (1984)
aux.posbernoulli.t

Auxiliary Function for the Positive Bernoulli Family Function with Time Effects
bifrankcop

Frank's Bivariate Distribution Family Function
betabinomial

Beta-binomial Distribution Family Function
bell

The Bell Series of Integers
beggs

Bacon and Eggs Data
Frank

Frank's Bivariate Distribution
altered

Altered, Inflated, Truncated and Deflated Values in GAITD Regression
Trunc

Truncated Values for the GT-Expansion Method
betaprime

The Beta-Prime Distribution
Binorm

Bivariate Normal Distribution Cumulative Distribution Function
Benini

The Benini Distribution
binormalcop

Gaussian Copula (Bivariate) Family Function
binomialff

Binomial Family Function
biamhcop

Ali-Mikhail-Haq Distribution Family Function
Bifgmcop

Farlie-Gumbel-Morgenstern's Bivariate Distribution
amlnormal

Asymmetric Least Squares Quantile Regression
Biamhcop

Ali-Mikhail-Haq Bivariate Distribution
bifgmexp

Bivariate Farlie-Gumbel-Morgenstern Exponential Distribution Family Function
biclaytoncop

Clayton Copula (Bivariate) Family Function
betaII

Beta Distribution of the Second Kind
bigumbelIexp

Gumbel's Type I Bivariate Distribution Family Function
bigamma.mckay

Bivariate Gamma: McKay's Distribution
binormal

Bivariate Normal Distribution Family Function
Brat

Inputting Data to fit a Bradley Terry Model
bratt

Bradley Terry Model With Ties
benini1

Benini Distribution Family Function
betageometric

Beta-geometric Distribution Family Function
Biclaytoncop

Clayton Copula (Bivariate) Distribution
Betanorm

The Beta-Normal Distribution
bifgmcop

Farlie-Gumbel-Morgenstern's Bivariate Distribution Family Function
Binom2.rho

Bivariate Probit Model
Binormcop

Gaussian Copula (Bivariate) Distribution
bmi.nz

Body Mass Index of New Zealand Adults Data
biplackettcop

Plackett's Bivariate Copula Family Function
binom2.rho

Bivariate Probit Regression
binom2.or

Bivariate Binary Regression with an Odds Ratio (Family Function)
bistudentt

Bivariate Student-t Family Function
cdf.lmscreg

Cumulative Distribution Function for LMS Quantile Regression
borel.tanner

Borel-Tanner Distribution Family Function
Bistudentt

Bivariate Student-t Distribution Cumulative Distribution Function
chest.nz

Chest Pain in NZ Adults Data
calibrate-methods

Calibration for Constrained Regression Models
cao

Fitting Constrained Additive Ordination (CAO)
chinese.nz

Chinese Population in New Zealand 1867--2001 Data
cens.gumbel

Censored Gumbel Distribution
amlpoisson

Poisson Regression by Asymmetric Maximum Likelihood Estimation
Binom2.or

Bivariate Odds Ratio Model
Bort

The Borel-Tanner Distribution
Biplackett

Plackett's Bivariate Copula
Betabinom

The Beta-Binomial Distribution
betaR

The Two-parameter Beta Distribution Family Function
cao.control

Control Function for RR-VGAMs (CAO)
cens.normal

Censored Normal Distribution
brat

Bradley Terry Model
calibrate

Model Calibrations
biplot-methods

Biplot of Constrained Regression Models
coalminers

Breathlessness and Wheeze Amongst Coalminers Data
cauchitlink

Cauchit Link Function
betaff

The Two-parameter Beta Distribution Family Function
clogloglink

Complementary Log-log Link Function
calibrate.rrvglm

Calibration for CLO models (RR-VGLMs)
calibrate.qrrvglm

Calibration for CQO and CAO models
calibrate.qrrvglm.control

Control Function for CQO/CAO Calibration
cauchy

Cauchy Distribution Family Function
cens.poisson

Censored Poisson Family Function
dirmultinomial

Fitting a Dirichlet-Multinomial Distribution
coefvgam

Extract Model Coefficients of a vgam() Object
cumulative

Ordinal Regression with Cumulative Probabilities
double.cens.normal

Univariate Normal Distribution with Double Censoring
dagum

Dagum Distribution Family Function
cfibrosis

Cystic Fibrosis Data
Expectiles-Exponential

Expectiles of the Exponential Distribution
ducklings

Relative Frequencies of Serum Proteins in White Pekin Ducklings
cgo

Redirects the user to cqo
Betageom

The Beta-Geometric Distribution
eCDF

Empirical Cumulative Distribution Function
confintvglm

Confidence Intervals for Parameters of VGLMs
expexpff1

Exponentiated Exponential Distribution
expexpff

Exponentiated Exponential Distribution
coefvlm

Extract Model Coefficients
crashes

Crashes on New Zealand Roads in 2009
dirmul.old

Fitting a Dirichlet-Multinomial Distribution
constraints

Constraint Matrices
dirichlet

Fitting a Dirichlet Distribution
Felix

The Felix Distribution
Card

Cardioid Distribution
calibrate.rrvglm.control

Control Function for CLO (RR-VGLM) Calibration
gaitdnbinomial

Generally--Altered, --Inflated, --Truncated and Deflated Negative Binomial Regression
felix

Felix Distribution Family Function
explog

The Exponential Logarithmic Distribution
bilogis

Bivariate Logistic Distribution
Gaitdpois

Generally--Altered, --Inflated, --Truncated and --Deflated Poisson Distribution
explogff

Exponential Logarithmic Distribution Family Function
Expectiles-Normal

Expectiles of the Normal Distribution
fff

F Distribution Family Function
fisk

Fisk Distribution family function
cardioid

Cardioid Distribution Family Function
gengamma.stacy

Generalized Gamma distribution family function
chisq

Chi-squared Distribution
bisa

Birnbaum-Saunders Regression Family Function
bilogistic

Bivariate Logistic Distribution Family Function
Bisa

The Birnbaum-Saunders Distribution
gengammaUC

Generalized Gamma Distribution
concoef

Extract Model Constrained/Canonical Coefficients
gpd

Generalized Pareto Distribution Regression Family Function
concoef-methods

Constrained (Canonical) Coefficients
hatvalues

Hat Values and Regression Deletion Diagnostics
gordlink

Gamma-Ordinal Link Function
has.interceptvlm

Has a Fitted VGLM Got an Intercept Term?
deermice

Captures of Peromyscus maniculatus (Also Known as Deer Mice).
Fisk

The Fisk Distribution
Dagum

The Dagum Distribution
clo

Redirects the User to rrvglm()
corbet

Corbet's Butterfly Data
cqo

Fitting Constrained Quadratic Ordination (CQO)
diffzeta

Differenced Zeta Distribution Family Function
fill

Creates a Matrix of Appropriate Dimension
cratio

Ordinal Regression with Continuation Ratios
deplot.lmscreg

Density Plot for LMS Quantile Regression
Diffzeta

Differenced Zeta Distribution
dhuber

Huber's Least Favourable Distribution
huber2

Huber's Least Favourable Distribution Family Function
Gaitdlog

Generally--Altered, --Inflated, --Truncated and --Deflated Logarithmic Distribution
Gaitdnbinom

Generally--Altered, --Inflated, --Truncated and --Deflated Negative Binomial Distribution
Gaitdzeta

Generally--Altered, --Inflated and --Truncated Zeta Distribution
df.residual

Residual Degrees-of-Freedom
Gaitdbinom

Generally--Altered, --Inflated, --Truncated and --Deflated Binomial Distribution
foldnormal

Folded Normal Distribution Family Function
double.expbinomial

Double Exponential Binomial Distribution Family Function
dgaitdplot

Plotting the GAITD Combo Density
add1.vglm

Add or Drop All Possible Single Terms to/from a Model
gaitdlog

Generally--Altered, --Inflated, --Truncated and Deflated Logarithmic Regression
foldsqrtlink

Folded Square Root Link Function
genray

The Generalized Rayleigh Distribution
enzyme

Enzyme Data
gamma1

1-parameter Gamma Regression Family Function
erlang

Erlang Distribution
erf

Error Function, and variants
gamma2

2-parameter Gamma Regression Family Function
gammaR

2-parameter Gamma Regression Family Function
depvar

Response Variable Extracted
expint

The Exponential Integral and Variants
genpoisson2

Generalized Poisson Regression (GP-2 Parameterization)
genrayleigh

Generalized Rayleigh Distribution Family Function
laplaceUC

The Laplace Distribution
gpdUC

The Generalized Pareto Distribution
grain.us

Grain Prices Data in USA
hdeff

Hauck-Donner Effects: A Detection Test for Wald Tests
latvar

Latent Variables
leukemia

Acute Myelogenous Leukemia Survival Data
finney44

Toxicity trial for insects
geometric

Geometric (Truncated and Untruncated) Distributions
grc

Row-Column Interaction Models including Goodman's RC Association Model and Unconstrained Quadratic Ordination
explink

Exponential Link Function
logF

Natural Exponential Family Generalized Hyperbolic Secant Distribution Family Function
expgeometric

Exponential Geometric Distribution Family Function
hdeffsev

Hauck-Donner Effects: Severity Measures
gumbel

Gumbel Regression Family Function
levy

Levy Distribution Family Function
loglaplace

Log-Laplace and Logit-Laplace Distribution Family Functions
dlogF

log F Distribution
expgeom

The Exponential Geometric Distribution
fisherzlink

Fisher's Z Link Function
hormone

Hormone Assay Data
familyname

Family Function Name
extlogF1

Extended log-F Distribution Family Function
fittedvlm

Fitted Values of a VLM object
hspider

Hunting Spider Data
Inv.lomax

The Inverse Lomax Distribution
formulavlm

Model Formulae and Term Names for VGLMs
fix.crossing

Fixing a Quantile Regression having Crossing
lakeO

Annual catches on Lake Otamangakau from October 1974 to October 1989
Lindley

The Lindley Distribution
frechet

Frechet Distribution Family Function
Kumar

The Kumaraswamy Distribution
inv.paralogistic

Inverse Paralogistic Distribution Family Function
Expectiles-Uniform

Expectiles of the Uniform Distribution
Frechet

The Frechet Distribution
gammahyperbola

Gamma Hyperbola Bivariate Distribution
freund61

Freund's (1961) Bivariate Extension of the Exponential Distribution
lindley

1-parameter Gamma Distribution
gaitdpoisson

Generally--Altered, --Inflated, --Truncated and Deflated Poisson Regression
lms.bcg

LMS Quantile Regression with a Box-Cox transformation to a Gamma Distribution
exppois

The Exponential Poisson Distribution
lms.bcn

LMS Quantile Regression with a Box-Cox Transformation to Normality
exppoisson

Exponential Poisson Distribution Family Function
exponential

Exponential Distribution
garma

GARMA (Generalized Autoregressive Moving-Average) Models
loglinb2

Loglinear Model for Two Binary Responses
lrtest

Likelihood Ratio Test of Nested Models
lrt.stat

Likelihood Ratio Test Statistics Evaluated at the Null Values
get.smart.prediction

Retrieves ``.smart.prediction''
get.smart

Retrieve One Component of ``.smart.prediction''
mccullagh89

McCullagh (1989) Distribution Family Function
dextlogF

Extended log-F Distribution
model.framevlm

Construct the Model Frame of a VLM Object
Hzeta

Haight's Zeta Distribution
mix2poisson

Mixture of Two Poisson Distributions
meangaitd

Mean of the GAITD Combo Density
Nakagami

Nakagami Distribution
olympics

2008 and 2012 Summer Olympic Final Medal Count Data
goffset

GAITD Offset for the GTE Method
nbcanlink

Negative Binomial Canonical Link Function
gew

General Electric and Westinghouse Data
Foldnorm

The Folded-Normal Distribution
flourbeetle

Mortality of Flour Beetles from Carbon Disulphide
plotqrrvglm

Model Diagnostic Plots for QRR-VGLMs
Posnorm

The Positive-Normal Distribution
hypersecant

Hyperbolic Secant Regression Family Function
ordpoisson

Ordinal Poisson Family Function
posnegbinomial

Positive Negative Binomial Distribution Family Function
plotqtplot.lmscreg

Quantile Plot for LMS Quantile Regression
is.smart

Test For a Smart Object
profilevglm

Method for Profiling vglm Objects
probitlink

Probit Link Function
logclink

Complementary-log Link Function
genpoisson0

Generalized Poisson Regression (Original Parameterization)
Inv.paralogistic

The Inverse Paralogistic Distribution
is.buggy

Does the Fitted Object Suffer from a Known Bug?
logff

Logarithmic Distribution
hzeta

Haight's Zeta Family Function
linkfun

Link Functions for VGLMs
iam

Index from Array to Matrix
genpoisson1

Generalized Poisson Regression (GP-1 Parameterization)
inv.binomial

Inverse Binomial Distribution Family Function
identitylink

Identity Link Function
logofflink

Log Link Function with an Offset
gevUC

The Generalized Extreme Value Distribution
gev

Generalized Extreme Value Regression Family Function
lomax

Lomax Distribution Family Function
qvar

Quasi-variances Extraction Function
is.zero

Zero Constraint Matrices
gaitdzeta

Generally--Altered, --Inflated, --Truncated and Deflated Zeta Regression
genbetaII

Generalized Beta Distribution of the Second Kind
GenbetaII

The Generalized Beta II Distribution
Genpois0

Generalized Poisson Distribution (Original Parameterization)
Gumbel-II

The Gumbel-II Distribution
lms.yjn

LMS Quantile Regression with a Yeo-Johnson Transformation to Normality
log1mexp

Logarithms with an Unit Offset and Exponential Term
gumbelII

Gumbel-II Regression Family Function
lino

Generalized Beta Distribution Family Function
loglinb3

Loglinear Model for Three Binary Responses
is.crossing

Quantile Crossing Detection
loglink

Log Link Function, and Variants
is.parallel

Parallelism Constraint Matrices
lvplot.rrvglm

Latent Variable Plot for RR-VGLMs
moffset

Matrix Offset
machinists

Machinists Accidents
mix2normal

Mixture of Two Univariate Normal Distributions
mix2exp

Mixture of Two Exponential Distributions
lerch

Lerch Phi Function
lambertW

The Lambert W Function
laplace

Laplace Regression Family Function
leipnik

Leipnik Regression Family Function
Lino

The Generalized Beta Distribution (Libby and Novick, 1982)
lvplot.qrrvglm

Latent Variable Plot for QO models
rayleigh

Rayleigh Regression Family Function
lirat

Low-iron Rat Teratology Data
logitoffsetlink

Logit-with-an-Offset Link Function
maxwell

Maxwell Regression Family Function
logloglink

Log-log and Log-log-log Link Functions
lvplot

Latent Variable Plot
Lomax

The Lomax Distribution
loglapUC

The Log-Laplace Distribution
lognormal

Lognormal Distribution
lqnorm

Minimizing the L-q norm Family Function
round2

Rounding of Numbers to Base 2
rootogram4

Rootograms (S4 generic) for Assessing Goodness of Fit of Probability Models
s

Defining Smooths in VGAM Formulas
skellam

Skellam Distribution Family Function
sc.studentt2

Scaled Student t Distribution with 2 df Family Function
Genpois1

Generalized Poisson Distribution (GP-1 and GP-2 Parameterizations of the Mean)
gompertz

Gompertz Regression Family Function
multilogitlink

Multi-logit Link Function
marital.nz

New Zealand Marital Data
mills.ratio

Mills Ratio
micmen

Michaelis-Menten Model
margeff

Marginal Effects for Several Categorical Response Models
nbordlink

Negative Binomial-Ordinal Link Function
negbinomial

Negative Binomial Distribution Family Function
Perks

The Perks Distribution
Skellam

The Skellam Distribution
ucberk

University California Berkeley Graduate Admissions
Maxwell

The Maxwell Distribution
truncweibull

Truncated Weibull Distribution Family Function
Paralogistic

The Paralogistic Distribution
paralogistic

Paralogistic Distribution Family Function
plotdgaitd.vglm

Plotting the GAITD Combo Density from a GAITD Regression Object
plotdeplot.lmscreg

Density Plot for LMS Quantile Regression
pneumo

Pneumoconiosis in Coalminers Data
perspqrrvglm

Perspective plot for QRR-VGLMs
Zabinom

Zero-Altered Binomial Distribution
Zigeom

Zero-Inflated Geometric Distribution
Yules

Yule-Simon Distribution
weibull.mean

Weibull Distribution Family Function, Parameterized by the Mean
zibinomial

Zero-Inflated Binomial Distribution Family Function
waldff

Wald Distribution Family Function
Gompertz

Gompertz Distribution
gumbelUC

The Gumbel Distribution
plotvglm

Plots for VGLMs
plotvgam.control

Control Function for plotvgam()
poisson.points

Poisson-points-on-a-plane/volume Distances Distribution
prentice74

Prentice (1974) Log-gamma Distribution
guplot

Gumbel Plot
qtplot.gumbel

Quantile Plot for Gumbel Regression
prinia

Yellow-bellied Prinia
qtplot.lmscreg

Quantile Plot for LMS Quantile Regression
rec.normal

Upper Record Values from a Univariate Normal Distribution
rrar

Nested Reduced-rank Autoregressive Models for Multiple Time Series
melbmaxtemp

Melbourne Daily Maximum Temperatures
hunua

Hunua Ranges Data
pospoisson

Positive Poisson Distribution Family Function
posnormal

Positive Normal Distribution Family Function
reciprocallink

Reciprocal Link Function
ParetoIV

The Pareto(IV/III/II) Distributions
paretoIV

Pareto(IV/III/II) Distribution Family Functions
nakagami

Nakagami Regression Family Function
multinomial

Multinomial Logit Model
pgamma.deriv.unscaled

Derivatives of the Incomplete Gamma Integral (Unscaled Version)
PoissonPoints

Poisson Points Distribution
pgamma.deriv

Derivatives of the Incomplete Gamma Integral
hyperg

Hypergeometric Family Function
poissonff

Poisson Regression
kendall.tau

Kendall's Tau Statistic
inv.gaussianff

Inverse Gaussian Distribution Family Function
inv.lomax

Inverse Lomax Distribution Family Function
powerlink

Power Link Function
prats

Pregnant Rats Toxological Experiment Data
kumar

Kumaraswamy Regression Family Function
ruge

Rutherford-Geiger Polonium Data
put.smart

Adds a List to the End of the List ``.smart.prediction''
rrvglm.optim.control

Control Function for rrvglm() Calling optim()
qrrvglm.control

Control Function for QRR-VGLMs (CQO)
Sinmad

The Singh-Maddala Distribution
rrvglm-class

Class ``rrvglm''
sinmad

Singh-Maddala Distribution Family Function
meplot

Mean Excess Plot
skewnorm

Skew-Normal Distribution
Simplex

Simplex Distribution
posbernUC

Positive Bernoulli Sequence Model
simulate.vlm

Simulate Responses for VGLMs and VGAMs
skewnormal

Univariate Skew-Normal Distribution Family Function
posbernoulli.b

Positive Bernoulli Family Function with Behavioural Effects
smart.expression

S Expression for Smart Functions
ordsup

Ordinal Superiority Measures
tobit

Tobit Regression
summaryvglm

Summarizing Vector Generalized Linear Model Fits
lgammaUC

The Log-Gamma Distribution
Polono

The Poisson Lognormal Distribution
oxtemp

Oxford Temperature Data
Log

Logarithmic Distribution
pordlink

Poisson-Ordinal Link Function
lgamma1

Log-gamma Distribution Family Function
logitlink

Logit Link Function
logLik.vlm

Extract Log-likelihood for VGLMs/VGAMs/etc.
posbinomial

Positive Binomial Distribution Family Function
logistic

Logistic Distribution Family Function
trplot.qrrvglm

Trajectory plot for QRR-VGLMs
smart.mode.is

Determine What Mode the Smart Prediction is In
makeham

Makeham Regression Family Function
summarypvgam

Summarizing Penalized Vector Generalized Additive Model Fits
Makeham

The Makeham Distribution
model.matrixqrrvglm

Construct the Model Matrix of a QRR-VGLM Object
Rayleigh

Rayleigh Distribution
Posgeom

Positive-Geometric Distribution
model.matrixvlm

Construct the Design Matrix of a VLM Object
propodds

Proportional Odds Model for Ordinal Regression
negbinomial.size

Negative Binomial Distribution Family Function With Known Size
rcqo

Constrained Quadratic Ordination
prplot

Probability Plots for Categorical Data Analysis
Truncpareto

The Truncated Pareto Distribution
normal.vcm

Univariate Normal Distribution as a Varying-Coefficient Model
vgam-class

Class ``vgam''
plotrcim0

Main Effects Plot for a Row-Column Interaction Model (RCIM)
paretoff

Pareto and Truncated Pareto Distribution Family Functions
nparam.vlm

Number of Parameters
notdocumentedyet

Undocumented and Internally Used Functions and Classes
perks

Perks Distribution Family Function
plotvgam

Default VGAM Plotting
posbernoulli.tb

Positive Bernoulli Family Function with Time and Behavioural Effects
Trinorm

Trivariate Normal Distribution Density and Random Variates
posbernoulli.t

Positive Bernoulli Family Function with Time Effects
predictqrrvglm

Predict Method for a CQO fit
waitakere

Waitakere Ranges Data
vglm-class

Class ``vglm''
vgam.control

Control Function for vgam()
vgam

Fitting Vector Generalized Additive Models
summaryvgam

Summarizing Vector Generalized Additive Model Fits
trplot

Trajectory Plot
vglm

Fitting Vector Generalized Linear Models
vglm.control

Control Function for vglm()
predictvglm

Predict Method for a VGLM fit
rigff

Reciprocal Inverse Gaussian distribution
Expectiles-sc.t2

Expectiles/Quantiles of the Scaled Student t Distribution with 2 Df
rdiric

The Dirichlet distribution
Rice

The Rice Distribution
riceff

Rice Distribution Family Function
rlplot.gevff

Return Level Plot for GEV Fits
seq2binomial

The Two-stage Sequential Binomial Distribution Family Function
seglines

Hauck-Donner Effects: Segmented Lines Plot
rec.exp1

Upper Record Values from a 1-parameter Exponential Distribution
score.stat

Rao's Score Test Statistics Evaluated at the Null Values
smartpred

Smart Prediction
specials

Special Values or Quantities in a Fitted Object
residualsvglm

Residuals for a VGLM fit
spikeplot

Spike Plot
trim.constraints

Trimmed Constraint Matrices
sratio

Ordinal Regression with Stopping Ratios
zetaff

Zeta Distribution Family Function
wine

Bitterness in Wine Data
wald.stat

Wald Test Statistics Evaluated at the Null Values
wrapup.smart

Cleans Up After Smart Prediction
Slash

Slash Distribution
Zibinom

Zero-Inflated Binomial Distribution
Tobit

The Tobit Distribution
slash

Slash Distribution Family Function
trinormal

Trivariate Normal Distribution Family Function
rrvglm

Fitting Reduced-Rank Vector Generalized Linear Models (RR-VGLMs)
weibullR

Weibull Distribution Family Function
topple

Topp-Leone Distribution Family Function
vcovvlm

Calculate Variance-Covariance Matrix for a Fitted VLM or RR-VGLM or QRR-VGLM Object
rhobitlink

Rhobit Link Function
rrvglm.control

Control Function for rrvglm()
sm.os

Defining O'Sullivan Spline Smooths in VGAM Formulas
step4

Choose a model by AIC in a Stepwise Algorithm
Triangle

The Triangle Distribution
setup.smart

Smart Prediction Setup
undocumented-methods

Undocumented Methods Functions
simplex

Simplex Distribution Family Function
sm.ps

Defining Penalized Spline Smooths in VGAM Formulas
triangle

Triangle Distribution Family Function
vglmff-class

Class ``vglmff''
weightsvglm

Prior and Working Weights of a VGLM fit
uninormal

Univariate Normal Distribution
venice

Venice Maximum Sea Levels Data
Topple

The Topp-Leone Distribution
zabinomial

Zero-Altered Binomial Distribution
studentt

Student t Distribution
toxop

Toxoplasmosis Data
zeta

Riemann's Zeta Function
vplot.profile

Plotting Functions for 'profile' Objects
Zeta

The Zeta Distribution
Zinegbin

Zero-Inflated Negative Binomial Distribution
Zageom

Zero-Altered Geometric Distribution
zageometric

Zero-Altered Geometric Distribution
vonmises

von Mises Distribution Family Function
zigeometric

Zero-Inflated Geometric Distribution Family Function
vsmooth.spline

Vector Cubic Smoothing Spline
zapoisson

Zero-Altered Poisson Distribution
Zanegbin

Zero-Altered Negative Binomial Distribution
zinegbinomial

Zero-Inflated Negative Binomial Distribution Family Function
zipebcom

Exchangeable Bivariate cloglog Odds-ratio Model From a Zero-inflated Poisson Distribution
yeo.johnson

Yeo-Johnson Transformation
yulesimon

Yule-Simon Family Function
zero

The zero Argument in VGAM Family Functions
Zipfmb

The Zipf-Mandelbrot Distribution
Zipois

Zero-Inflated Poisson Distribution
Zapois

Zero-Altered Poisson Distribution
zipf

Zipf Distribution Family Function
zanegbinomial

Zero-Altered Negative Binomial Distribution
Zipf

The Zipf Distribution
zipoisson

Zero-Inflated Poisson Distribution Family Function
zoabetaR

Zero- and One-Inflated Beta Distribution Family Function
Zoabeta

The Zero/One-Inflated Beta Distribution