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VGAM (version 1.1-2)

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 (150+) 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). Note that these functions are subject to change; see the NEWS and ChangeLog files for latest changes.

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Version

Install

install.packages('VGAM')

Monthly Downloads

42,087

Version

1.1-2

License

GPL-3

Maintainer

Last Published

November 21st, 2019

Functions in VGAM (1.1-2)

AR1EIM

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

The ABO Blood Group System
BICvlm

Bayesian Information Criterion
dAR1

The AR-1 Autoregressive Process
A1A2A3

The A1A2A3 Blood Group System
AICvlm

Akaike's Information Criterion
AB.Ab.aB.ab

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

Computes Model Coefficients and Quantities
AR1

Autoregressive Process with Order-1 Family Function
Coef.rrvglm-class

Class ``Coef.rrvglm''
MNSs

The MNSs Blood Group System
Links

Link functions for VGLM/VGAM/etc. families
Huggins89.t1

Table 1 of Huggins (1989)
AA.Aa.aa

The AA-Aa-aa Blood Group System
Rcim

Mark the Baseline of Row and Column on a Matrix data
Coef.vlm

Extract Model Coefficients for VLM Objects
Coef.rrvglm

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

Class ``Coef.qrrvglm''
CommonVGAMffArguments

Common VGAM Family Function Arguments
SURff

Seemingly Unrelated Regressions Family Function
Qvar

Quasi-variances Preprocessing Function
Pareto

The Pareto Distribution
acat

Ordinal Regression with Adjacent Categories Probabilities
Coef.qrrvglm

Returns Important Matrices etc. of a QO Object
Tol

Tolerances
Max

Maximums
R2latvar

R-squared for Latent Variable Models
SurvS4

Create a Survival Object
Opt

Optimums
Inv.gaussian

The Inverse Gaussian Distribution
bell

The Bell Series of Integers
alaplace

Asymmetric Laplace Distribution Family Functions
amlbinomial

Binomial Logistic Regression by Asymmetric Maximum Likelihood Estimation
amlexponential

Exponential Regression by Asymmetric Maximum Likelihood Estimation
Betanorm

The Beta-Normal Distribution
amlnormal

Asymmetric Least Squares Quantile Regression
betaR

The Two-parameter Beta Distribution Family Function
Rank

Rank
betaprime

The Beta-Prime Distribution
betaII

Beta Distribution of the Second Kind
alaplaceUC

The Laplace Distribution
Betabinom

The Beta-Binomial Distribution
TIC

Takeuchi's Information Criterion
backPain

Data on Back Pain Prognosis, from Anderson (1984)
bilogistic

Bivariate Logistic Distribution Family Function
Betageom

The Beta-Geometric Distribution
beggs

Bacon and Eggs Data
betabinomial

Beta-binomial Distribution Family Function
Select

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

Beta-geometric Distribution Family Function
binom2.or

Bivariate Binary Regression with an Odds Ratio (Family Function)
Binom2.rho

Bivariate Probit Model
SurvS4-class

Class "SurvS4"
V1

V1 Flying-Bombs Hits in London
cardioid

Cardioid Distribution Family Function
cgo

Redirects the user to cqo
bratt

Bradley Terry Model With Ties
Binom2.or

Bivariate Binary Regression with an Odds Ratio
chest.nz

Chest Pain in NZ Adults Data
calibrate-methods

Calibration for Constrained Regression Models
cauchitlink

Cauchit Link Function
binomialff

Binomial Family Function
Bell

The Bell Distribution
df.residual

Residual Degrees-of-Freedom
depvar

Response Variable Extracted
coalminers

Breathlessness and Wheeze Amongst Coalminers Data
coefvgam

Extract Model Coefficients of a vgam() Object
aux.posbernoulli.t

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

Utility Functions for the VGAM Package
bellff

Bell Distribution Family Function
auuc

Auckland University Undergraduate Counts Data
diffzeta

Differenced Zeta Distribution Family Function
betabinomialff

Beta-binomial Distribution Family Function
bifgmcop

Farlie-Gumbel-Morgenstern's Bivariate Distribution Family Function
Benford

Benford's Distribution
Bifgmcop

Farlie-Gumbel-Morgenstern's Bivariate Distribution
Frank

Frank's Bivariate Distribution
betaff

The Two-parameter Beta Distribution Family Function
VGAM-package

Vector Generalized Linear and Additive Models and Associated Models
biamhcop

Ali-Mikhail-Haq Distribution Family Function
binom2.rho

Bivariate Probit Model (Family Function)
Bistudentt

Bivariate Student-t Distribution Cumulative Distribution Function
Biamhcop

Ali-Mikhail-Haq Bivariate Distribution
amlpoisson

Poisson Regression by Asymmetric Maximum Likelihood Estimation
binormal

Bivariate Normal Distribution Family Function
Diffzeta

Differenced Zeta Distribution
bmi.nz

Body Mass Index of New Zealand Adults Data
Binorm

Bivariate Normal Distribution Cumulative Distribution Function
Expectiles-Uniform

Expectiles of the Uniform Distribution
expexpff

Exponentiated Exponential Distribution
bilogis

Bivariate Logistic Distribution
Binormcop

Gaussian Copula (Bivariate) Distribution
cao.control

Control Function for RR-VGAMs (CAO)
Brat

Inputting Data to fit a Bradley Terry Model
bigumbelIexp

Gumbel's Type I Bivariate Distribution Family Function
brat

Bradley Terry Model
calibrate.qrrvglm

Calibration for CQO and CAO models
calibrate

Model Calibrations
binormalcop

Gaussian Copula (Bivariate) Family Function
exppoisson

Exponential Poisson Distribution Family Function
exppois

The Exponential Poisson Distribution
fisherzlink

Fisher's Z Link Function
anova.vglm

Analysis of Deviance for Vector Generalized Linear Model Fits
chinese.nz

Chinese Population in New Zealand 1867--2001 Data
Gaitbinom.mlm

Generally-Altered, -Inflated and -Truncated Binomial Distribution (GAIT--binom--MLM--MLM)
fisk

Fisk Distribution family function
gabinomial.mlm

Generally-Altered Binomial Regression Family Function (multinomial logit model based; GA-binom-MLM)
gamma1

1-parameter Gamma Regression Family Function
bisa

Birnbaum-Saunders Distribution Family Function
bigamma.mckay

Bivariate Gamma: McKay's Distribution
Bort

The Borel-Tanner Distribution
borel.tanner

Borel-Tanner Distribution Family Function
biplot-methods

Biplot of Constrained Regression Models
Card

Cardioid Distribution
gamma2

2-parameter Gamma Regression Family Function
cauchy

Cauchy Distribution Family Function
chisq

Chi-squared Distribution
concoef

Extract Model Constrained/Canonical Coefficients
cdf.lmscreg

Cumulative Distribution Function for LMS Quantile Regression
calibrate.qrrvglm.control

Control Function for CQO/CAO Calibration
confintvglm

Confidence Intervals for Parameters of VGLMs
geometric

Geometric (Truncated and Untruncated) Distributions
constraints

Constraint Matrices
dagum

Dagum Distribution Family Function
genray

The Generalized Rayleigh Distribution
deermice

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

Calibration for CLO models (RR-VGLMs)
corbet

Corbet's Butterfly Data
cens.gumbel

Censored Gumbel Distribution
Benini

The Benini Distribution
benini1

Benini Distribution Family Function
biclaytoncop

Clayton Copula (Bivariate) Family Function
deplot.lmscreg

Density Plot for LMS Quantile Regression
gevUC

The Generalized Extreme Value Distribution
cens.normal

Censored Normal Distribution
gev

Generalized Extreme Value Regression Family Function
double.expbinomial

Double Exponential Binomial Distribution Family Function
Biclaytoncop

Clayton Copula (Bivariate) Distribution
dirmultinomial

Fitting a Dirichlet-Multinomial Distribution
Dagum

The Dagum Distribution
biplackettcop

Plackett's Bivariate Copula Family Function
bifrankcop

Frank's Bivariate Distribution Family Function
expexpff1

Exponentiated Exponential Distribution
Biplackett

Plackett's Bivariate Copula
double.cens.normal

Univariate Normal Distribution with Double Censoring
bifgmexp

Bivariate Farlie-Gumbel-Morgenstern Exponential Distribution Family Function
Bisa

The Birnbaum-Saunders Distribution
bistudentt

Bivariate Student-t Family Function
expgeometric

Exponential Geometric Distribution Family Function
familyname

Family Function Name
coefvlm

Extract Model Coefficients
calibrate.rrvglm.control

Control Function for CLO (RR-VGLM) Calibration
add1.vglm

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

Fitting Constrained Additive Ordination (CAO)
cqo

Fitting Constrained Quadratic Ordination (CQO)
concoef-methods

Constrained (Canonical) Coefficients
crashes

Crashes on New Zealand Roads in 2009
felix

Felix Distribution Family Function
Expectiles-Normal

Expectiles of the Normal Distribution
enzyme

Enzyme Data
dirichlet

Fitting a Dirichlet Distribution
dirmul.old

Fitting a Dirichlet-Multinomial Distribution
fill

Creates a Matrix of Appropriate Dimension
expint

The Exponential Integral and Variants
expgeom

The Exponential Geometric Distribution
explink

Exponential Link Function
explogff

Exponential Logarithmic Distribution Family Function
exponential

Exponential Distribution
explog

The Exponential Logarithmic Distribution
cens.poisson

Censored Poisson Family Function
clo

Redirects the User to rrvglm()
cfibrosis

Cystic Fibrosis Data
flourbeetle

Mortality of Flour Beetles from Carbon Disulphide
guplot

Gumbel Plot
Gaitnbinom.mix

Generally-Altered, -Inflated and -Truncated Negative Binomial Distribution (GAIT--NB--NB--NB mixture)
Fisk

The Fisk Distribution
fittedvlm

Fitted Values of a VLM object
Gaitpois.mix

Generally-Altered, -Inflated and -Truncated Poisson Distribution (GAIT--Pois--Pois--Pois mixture)
gammaR

2-parameter Gamma Regression Family Function
gammahyperbola

Gamma Hyperbola Bivariate Distribution
get.smart

Retrieve One Component of ``.smart.prediction''
gatpoisson.mlm

Generally-Altered and -Truncated Poisson Regression Family Function (GAT--Pois--MLM Variant)
Gaitpois.mlm

Generally-Altered, -Inflated and -Truncated Poisson Distribution (GAIT--Pois--MLM--MLM)
Gaitnbinom.mlm

Generally-Altered, -Inflated and -Truncated Negative Binomial Distribution (GAIT--NB--MLM--MLM)
clogloglink

Complementary Log-log Link Function
Expectiles-Exponential

Expectiles of the Exponential Distribution
cumulative

Ordinal Regression with Cumulative Probabilities
cratio

Ordinal Regression with Continuation Ratios
ducklings

Relative Frequencies of Serum Proteins in White Pekin Ducklings
get.smart.prediction

Retrieves ``.smart.prediction''
genbetaII

Generalized Beta Distribution of the Second Kind
Foldnorm

The Folded-Normal Distribution
has.interceptvlm

Has a Fitted VGLM Got an Intercept Term?
fff

F Distribution Family Function
foldsqrtlink

Folded Square Root Link Function
gatnbinomial.mlm

Generally-Altered and -Truncated Negative Binomial Regression Family Function (GAT--NB--MLM Variant)
formulavlm

Model Formulae and Term Names for VGLMs
frechet

Frechet Distribution Family Function
foldnormal

Folded Normal Distribution Family Function
erlang

Erlang Distribution
Felix

The Felix Distribution
erf

Error Function, and variants
gpd

Generalized Pareto Distribution Regression Family Function
gengamma.stacy

Generalized Gamma distribution family function
GenbetaII

The Generalized Beta II Distribution
gordlink

Gamma-Ordinal Link Function
gatpoisson.mix

Generally-Altered and -Truncated Poisson Regression Family Function (GAT--Pois--Pois Mixture Variant)
gew

General Electric and Westinghouse Data
gipoisson.mlm

Generally-Inflated Poisson Distribution Family Function
genpoisson

Generalized Poisson distribution
hzeta

Haight's Zeta Family Function
Hzeta

Haight's Zeta Distribution
inv.lomax

Inverse Lomax Distribution Family Function
Frechet

The Frechet Distribution
Inv.lomax

The Inverse Lomax Distribution
freund61

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

Generalized Rayleigh Distribution Family Function
gatnbinomial.mix

Generally-Altered and -Truncated Negative Binomial Regression Family Function (GAT--NB--NB Mixture Variant)
gumbel

Gumbel Regression Family Function
gompertz

Gompertz Regression Family Function
gumbelII

Gumbel-II Regression Family Function
garma

GARMA (Generalized Autoregressive Moving-Average) Models
Gompertz

The Gompertz Distribution
gumbelUC

The Gumbel Distribution
Gumbel-II

The Gumbel-II Distribution
laplace

Laplace Regression Family Function
hspider

Hunting Spider Data
lambertW

The Lambert W Function
huber2

Huber's Least Favourable Distribution Family Function
gengammaUC

The Generalized Gamma Distribution
dgenpois

The Generalized Poisson Distribution
inv.binomial

Inverse Binomial Distribution Family Function
hyperg

Hypergeometric Family Function
hypersecant

Hyperbolic Secant Regression Family Function
laplaceUC

The Laplace Distribution
identitylink

Identity Link Function
latvar

Latent Variables
iam

Index from Array to Matrix
gpdUC

The Generalized Pareto Distribution
grc

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

Huber's Least Favourable Distribution
is.buggy

Does the Fitted Object Suffer from a Known Bug?
gtbinomial

Generally-Truncated Binomial Distribution Family Function
is.parallel

Parallelism Constraint Matrices
hunua

Hunua Ranges Data
inv.gaussianff

Inverse Gaussian Distribution Family Function
Lindley

The Lindley Distribution
grain.us

Grain Prices Data in USA
leipnik

Leipnik Regression Family Function
hdeff

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

Hat Values and Regression Deletion Diagnostics
lerch

Lerch Phi Function
lindley

1-parameter Gamma Distribution
inv.paralogistic

Inverse Paralogistic Distribution Family Function
hdeffsev

Hauck-Donner Effects: Severity Measures
hormone

Hormone Assay Data
is.zero

Zero Constraint Matrices
is.smart

Test For a Smart Object
Inv.paralogistic

The Inverse Paralogistic Distribution
lirat

Low-iron Rat Teratology Data
kumar

Kumaraswamy Regression Family Function
lms.bcg

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

Acute Myelogenous Leukemia Survival Data
kendall.tau

Kendall's Tau Statistic
Kumar

The Kumaraswamy Distribution
levy

Levy Distribution Family Function
lino

Generalized Beta Distribution Family Function
lgammaUC

The Log-Gamma Distribution
lakeO

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

The Generalized Beta Distribution (Libby and Novick, 1982)
lgamma1

Log-gamma Distribution Family Function
dlogF

log F Distribution
linkfun

Link Functions
logLik.vlm

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

Logarithmic Distribution
loglinb2

Loglinear Model for Two Binary Responses
logclink

Complementary-log Link Function
Makeham

The Makeham Distribution
logistic

Logistic Distribution Family Function
logF

Natural Exponential Family Generalized Hyperbolic Secant Distribution Family Function
lvplot

Latent Variable Plot
logff

Logarithmic Distribution
log1mexp

Logarithms with an Unit Offset and Exponential Term
lrtest

Likelihood Ratio Test of Nested Models
loglink

Log Link Function, and Variants
loglinb3

Loglinear Model for Three Binary Responses
lrt.stat

Likelihood Ratio Test Statistics Evaluated at the Null Values
makeham

Makeham Regression Family Function
mills.ratio

Mills Ratio
lqnorm

Minimizing the L-q norm Family Function
machinists

Machinists Accidents
micmen

Michaelis-Menten Model
meplot

Mean Excess Plot
melbmaxtemp

Melbourne Daily Maximum Temperatures
margeff

Marginal Effects for Several Categorical Response Models
Nakagami

Nakagami Distribution
negbinomial.size

Negative Binomial Distribution Family Function With Known Size
linkfun.vglm

Link Functions for VGLMs
normal.vcm

Univariate Normal Distribution as a Varying-Coefficient Model
lms.bcn

LMS Quantile Regression with a Box-Cox Transformation to Normality
lms.yjn

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

Negative Binomial Canonical Link Function
notdocumentedyet

Undocumented and Internally Used Functions and Classes
logloglink

Log-log and Log-log-log Link Functions
mccullagh89

McCullagh (1989) Distribution Family Function
Maxwell

The Maxwell Distribution
lomax

Lomax Distribution Family Function
logitoffsetlink

Logit-with-an-Offset Link Function
logitlink

Logit Link Function
loglapUC

The Log-Laplace Distribution
loglaplace

Log-Laplace and Logit-Laplace Distribution Family Functions
Lomax

The Lomax Distribution
nparam.vlm

Number of Parameters
marital.nz

New Zealand Marital Data
maxwell

Maxwell Regression Family Function
model.matrixqrrvglm

Construct the Model Matrix of a QRR-VGLM Object
nbordlink

Negative Binomial-Ordinal Link Function
model.matrixvlm

Construct the Design Matrix of a VLM Object
lognormal

Lognormal Distribution
negbinomial

Negative Binomial Distribution Family Function
Oiposbinom

One-Inflated Positive Binomial Distribution
oiposbinomial

One-Inflated Positive Binomial Distribution Family Function
logofflink

Log Link Function with an Offset
paretoIV

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

One-truncated Poisson Distribution
probitlink

Probit Link Function
otzeta

One-truncated Zeta Distribution Family Function
lvplot.qrrvglm

Latent Variable Plot for QO models
oalog

One-Altered Logarithmic Distribution
oazeta

One-Altered Zeta Distribution
mix2normal

Mixture of Two Univariate Normal Distributions
mix2exp

Mixture of Two Exponential Distributions
nakagami

Nakagami Regression Family Function
multinomial

Multinomial Logit Model
Oazeta

One-Altered Logarithmic Distribution
lvplot.rrvglm

Latent Variable Plot for RR-VGLMs
oapospoisson

One-Altered Positive-Poisson Distribution
Oapospois

One-Altered Logarithmic Distribution
Oizeta

One-Inflated Zeta Distribution
oizeta

One-inflated Zeta Distribution Family Function
ParetoIV

The Pareto(IV/III/II) Distributions
Paralogistic

The Paralogistic Distribution
paralogistic

Paralogistic Distribution Family Function
simulate.vlm

Simulate Responses for VGLMs and VGAMs
summaryvgam

Summarizing Vector Generalized Additive Model Fits
oizipf

One-inflated Zipf Distribution Family Function
Oizipf

One-Inflated Zipf Distribution
otlog

One-truncated Logarithmic Distribution
ordsup

Ordinal Superiority Measures
mix2poisson

Mixture of Two Poisson Distributions
poissonff

Poisson Family Function
Oalog

One-Altered Logarithmic Distribution
pgamma.deriv

Derivatives of the Incomplete Gamma Integral
Oipospois

One-Inflated Positive Poisson Distribution
pgamma.deriv.unscaled

Derivatives of the Incomplete Gamma Integral (Unscaled Version)
Otlog

One-truncated Logarithmic Distribution
oipospoisson

One-inflated Positive Poisson Distribution Family Function
Otpospois

One-truncated Positive-Poisson Distribution
posbernoulli.tb

Positive Bernoulli Family Function with Time and Behavioural Effects
plotqtplot.lmscreg

Quantile Plot for LMS Quantile Regression
paretoff

Pareto and Truncated Pareto Distribution Family Functions
propodds

Proportional Odds Model for Ordinal Regression
moffset

Matrix Offset
model.framevlm

Construct the Model Frame of a VLM Object
Oilog

One-Inflated Logarithmic Distribution
multilogitlink

Multi-logit Link Function
plotqrrvglm

Model Diagnostic Plots for QRR-VGLMs
plotdeplot.lmscreg

Density Plot for LMS Quantile Regression
oilog

One-inflated Logarithmic Distribution Family Function
olympics

2008 and 2012 Summer Olympic Final Medal Count Data
Polono

The Poisson Lognormal Distribution
rhobitlink

Rhobit Link Function
qrrvglm.control

Control Function for QRR-VGLMs (CQO)
perks

Perks Distribution Family Function
poisson.points

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

Default VGAM Plotting
plotvgam.control

Control Function for plotvgam()
pordlink

Poisson-Ordinal Link Function
prplot

Probability Plots for Categorical Data Analysis
ordpoisson

Ordinal Poisson Family Function
rayleigh

Rayleigh Regression Family Function
Posbinom

Positive-Binomial Distribution
pospoisson

Positive Poisson Distribution Family Function
score.stat

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

Positive-Negative Binomial Distribution
Pospois

Positive-Poisson Distribution
qvar

Quasi-variances Extraction Function
undocumented-methods

Undocumented Methods Functions
plotrcim0

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

The Rice Distribution
rrvglm.control

Control Function for rrvglm()
posbernUC

Positive Bernoulli Sequence Model
posbernoulli.b

Positive Bernoulli Family Function with Behavioural Effects
predictqrrvglm

Predict Method for a CQO fit
PoissonPoints

Poisson Points Distribution
yip88

Zero-Inflated Poisson Distribution (Yip (1988) algorithm)
Slash

Slash Distribution
riceff

Rice Distribution Family Function
predictvglm

Predict Method for a VGLM fit
rrvglm.optim.control

Control Function for rrvglm() Calling optim()
Rayleigh

The Rayleigh Distribution
Zipois

Zero-Inflated Poisson Distribution
Expectiles-sc.t2

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

Positive Negative Binomial Distribution Family Function
rcqo

Constrained Quadratic Ordination
Skellam

The Skellam Distribution
skellam

Skellam Distribution Family Function
rigff

Reciprocal Inverse Gaussian distribution
sm.os

Defining O'Sullivan Spline Smooths in VGAM Formulas
Tikuv

A Short-tailed Symmetric Distribution
rlplot.gevff

Return Level Plot for GEV Fits
seglines

Hauck-Donner Effects: Segmented Lines Plot
oxtemp

Oxford Temperature Data
Otzeta

One-truncated Zeta Distribution
plotvglm

Plots for VGLMs
put.smart

Adds a List to the End of the List ``.smart.prediction''
prats

Pregnant Rats Toxological Experiment Data
Perks

The Perks Distribution
Posnorm

The Positive-Normal Distribution
posbinomial

Positive Binomial Distribution Family Function
rdiric

The Dirichlet distribution
pneumo

Pneumoconiosis in Coalminers Data
setup.smart

Smart Prediction Setup
perspqrrvglm

Perspective plot for QRR-VGLMs
rec.exp1

Upper Record Values from a 1-parameter Exponential Distribution
posnormal

Positive Normal Distribution Family Function
posbernoulli.t

Positive Bernoulli Family Function with Time Effects
simplex

Simplex Distribution Family Function
prentice74

Prentice (1974) Log-gamma Distribution
rootogram4

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

Zeta Distribution Family Function
residualsvglm

Residuals for a VGLM fit
rrar

Nested Reduced-rank Autoregressive Models for Multiple Time Series
prinia

Yellow-bellied Prinia
toxop

Toxoplasmosis Data
tikuv

Short-tailed Symmetric Distribution Family Function
sm.ps

Defining Penalized Spline Smooths in VGAM Formulas
Posgeom

Positive-Geometric Distribution
powerlink

Power Link Function
profilevglm

Method for Profiling vglm Objects
trinormal

Trivariate Normal Distribution Family Function
sinmad

Singh-Maddala Distribution Family Function
smart.mode.is

Determine What Mode the Smart Prediction is In
smartpred

Smart Prediction
smart.expression

S Expression for Smart Functions
sc.studentt2

Scaled Student t Distribution with 2 df Family Function
vglm.control

Control Function for vglm()
Triangle

The Triangle Distribution
summarypvgam

Summarizing Penalized Vector Generalized Additive Model Fits
skewnormal

Univariate Skew-Normal Distribution Family Function
Sinmad

The Singh-Maddala Distribution
triangle

Triangle Distribution Family Function
step4

Choose a model by AIC in a Stepwise Algorithm
waldff

Wald Distribution Family Function
reciprocallink

Reciprocal Link Function
skewnorm

Skew-Normal Distribution
Simplex

Simplex Distribution
rrvglm

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

Trivariate Normal Distribution Density and Random Variates
rec.normal

Upper Record Values from a Univariate Normal Distribution
venice

Venice Maximum Sea Levels Data
Zinegbin

Zero-Inflated Negative Binomial Distribution
rrvglm-class

Class ``rrvglm''
summaryvglm

Summarizing Vector Generalized Linear Model Fits
tobit

Tobit Model
yeo.johnson

Yeo-Johnson Transformation
vplot.profile

Plotting Functions for 'profile' Objects
Zanegbin

Zero-Altered Negative Binomial Distribution
vsmooth.spline

Vector Cubic Smoothing Spline
uninormal

Univariate Normal Distribution
Zeta

The Zeta Distribution
Zoabeta

The Zero/One-Inflated Beta Distribution
qtplot.lmscreg

Quantile Plot for LMS Quantile Regression
qtplot.gumbel

Quantile Plot for Gumbel Regression
sratio

Ordinal Regression with Stopping Ratios
zanegbinomial

Zero-Altered Negative Binomial Distribution
zoabetaR

Zero- and One-Inflated Beta Distribution Family Function
truncweibull

Truncated Weibull Distribution Family Function
trplot

Trajectory Plot
weibullR

Weibull Distribution Family Function
vcovvlm

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

von Mises Distribution Family Function
vgam-class

Class ``vgam''
zabinomial

Zero-Altered Binomial Distribution
vgam.control

Control Function for vgam()
zageometric

Zero-Altered Geometric Distribution
vglm-class

Class ``vglm''
Zageom

Zero-Altered Geometric Distribution
Truncpareto

The Truncated Pareto Distribution
trplot.qrrvglm

Trajectory plot for QRR-VGLMs
Tobit

The Tobit Distribution
weightsvglm

Prior and Working Weights of a VGLM fit
vglmff-class

Class ``vglmff''
Zigeom

Zero-Inflated Geometric Distribution
ruge

Rutherford-Geiger Polonium Data
zinegbinomial

Zero-Inflated Negative Binomial Distribution Family Function
s

Defining Smooths in VGAM Formulas
seq2binomial

The Two-stage Sequential Binomial Distribution Family Function
slash

Slash Distribution Family Function
vglm

Fitting Vector Generalized Linear Models
ucberk

University California Berkeley Graduate Admissions
studentt

Student t Distribution
yulesimon

Yule-Simon Family Function
zapoisson

Zero-Altered Poisson Distribution
weibull.mean

Weibull Distribution Family Function, Parameterized by the Mean
zipebcom

Exchangeable Bivariate cloglog Odds-ratio Model From a Zero-inflated Poisson Distribution
topple

Topp-Leone Distribution Family Function
Zapois

Zero-Altered Poisson Distribution
zeta

Riemann's Zeta Function
zipf

Zipf Distribution Family Function
Yules

Yule-Simon Distribution
waitakere

Waitakere Ranges Data
vgam

Fitting Vector Generalized Additive Models
Topple

The Topp-Leone Distribution
zero

The zero Argument in VGAM Family Functions
wald.stat

Wald Test Statistics Evaluated at the Null Values
Zabinom

Zero-Altered Binomial Distribution
zipoisson

Zero-Inflated Poisson Distribution Family Function
zigeometric

Zero-Inflated Geometric Distribution Family Function
wine

Bitterness in Wine Data
wrapup.smart

Cleans Up After Smart Prediction
Zibinom

Zero-Inflated Binomial Distribution
zibinomial

Zero-Inflated Binomial Distribution Family Function
Zipfmb

The Zipf-Mandelbrot Distribution
Zipf

The Zipf Distribution
finney44

Toxicity trial for insects