Learn R Programming

CountsEPPM (version 3.1)

Mean and Variance Modeling of Count Data

Description

Modeling under- and over-dispersed count data using extended Poisson process models as in the article Faddy and Smith (2011) .

Copy Link

Version

Install

install.packages('CountsEPPM')

Monthly Downloads

223

Version

3.1

License

GPL-2

Maintainer

David Smith

Last Published

January 10th, 2024

Functions in CountsEPPM (3.1)

coef.CountsEPPM

Extraction of model coefficients for CountsEPPM Objects
summary.CountsEPPM

Method for CountsEPPM object
fitted.CountsEPPM

Extraction of fitted values from CountsEPPM Objects
vcov.CountsEPPM

Variance/Covariance Matrix for Coefficients
print.summaryCountsEPPM

Printing of summaryCountsEPPM Objects
waldtest.CountsEPPM

Wald Test of Nested Models for CountsEPPM Objects
logLik.CountsEPPM

Method for CountsEPPM object
plot.CountsEPPM

Diagnostic Plots for CountsEPPM Objects
Titanic.survivors.case

Titanic survivors data
Model.FaddyJMV.limiting

Function to fit the limiting form of a Faddy distribution for under-dispersed counts.
hatvalues.CountsEPPM

Extraction of hat matrix values from CountsEPPM Objects
residuals.CountsEPPM

Residuals for CountsEPPM Objects
herons.case

Green-backed herons as two groups
herons.group

Green-backed herons as two groups
takeover.bids.case

Takeover bids data.
print.CountsEPPM

Printing of CountsEPPM Objects
predict.CountsEPPM

Prediction Method for CountsEPPM Objects
Model.Faddy

Function for Faddy distribution with log link.
Model.FaddyJMV.general

Function for a general Faddy distribution modeled by means and scale-factors.
LL.gradient

Function used to calculate the first derivatives of the log likelihood with respect to the model parameters.
Faddyprob.limiting

Calculation of vector of probabilities for the limiting form of the Faddy distribution.
CountsEPPM-package

Fitting of EPPM models to count and binary data.
LL.Regression.Counts

Function called by optim to calculate the log likelihood from the probabilities and hence perform the fitting of regression models to the binary data.
Faddyprob.general

Calculation of vector of probabilities for a Faddy distribution.
Luningetal.litters

Number of trials (implantations) in data of Luning, et al. (1966)
EPPMprob

Calculation of vector of probabilities for a extended Poisson process model (EPPM).
Model.Counts

Function for obtaining output from distributional models.
cooks.distance.CountsEPPM

Cook's distance for CountsEPPM Objects
ceriodaphnia.group

Ceriodaphnia data
Williams.litters

Number of trials (implantations) of data of Williams (1996).
LRTruncation

Probabilities for distributions truncated on the left (lower) and/or right (upper).
CountsEPPM

Fitting of EPPM models to count data.