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epigrowthfit (version 0.15.4)

Nonlinear Mixed Effects Models of Epidemic Growth

Description

Maximum likelihood estimation of nonlinear mixed effects models of epidemic growth using Template Model Builder ('TMB'). Enables joint estimation for collections of disease incidence time series, including time series that describe multiple epidemic waves. Supports a set of widely used phenomenological models: exponential, logistic, Richards (generalized logistic), subexponential, and Gompertz. Provides methods for interrogating model objects and several auxiliary functions, including one for computing basic reproduction numbers from fitted values of the initial exponential growth rate. Preliminary versions of this software were applied in Ma et al. (2014) and in Earn et al. (2020) .

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Install

install.packages('epigrowthfit')

Monthly Downloads

186

Version

0.15.4

License

GPL-3

Issues

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Maintainer

Mikael Jagan

Last Published

February 19th, 2025

Functions in epigrowthfit (0.15.4)

egf_parallel

Define a Parallelization Method
epigrowthfit-deprecated

Deprecated Functions in Package epigrowthfit
egf_model

Define a Top Level Nonlinear Model
egf_prior

Prior Distributions
egf_has_random

Test for Random Effects
egf_optimizer

Define an Optimization Method
epigrowthfit-defunct

Defunct Functions in Package epigrowthfit
egf_top

Top Level Nonlinear Model Parameter Names
egf_has_converged

Test for Convergence
epigrowthfit-notyet

Not Yet Implemented Functions in Package epigrowthfit
finalsize

Compute the Expected Epidemic Final Size
formula.egf

Extract Model Formulae
gi

Generation Interval Distribution
fitted.egf

Fitted Values
fixef.egf

Details about Fixed Effect Coefficients
logLik.egf

Extract the Log (Marginal) Likelihood
epigrowthfit-package

R Package epigrowthfit
getCall.egf

Extract Model Calls
extractAIC.egf

Extract the (Generalized) AIC
model.frame.egf

Extract Model Frames
simulate.egf_model

Simulating Incidence Time Series
print.egf

Printing Model Objects
model.matrix.egf

Extract Design Matrices
summary.egf

Model Summaries
ranef.egf

Details about Random Effect Coefficients
plot.egf

Plot Nonlinear Mixed Effects Models of Epidemic Growth
nobs.egf

Extract the Number of Observations
vcov.egf

Model Covariance Matrices
predict.egf

Predicted Values
profile.egf

Univariate Likelihood Profiles
simulate.egf

Simulation and Parametric Bootstrapping
terms.egf

Model Terms
timescale

Compute the Characteristic Time Scale
cov2theta

Compute a Packed Representation of a Covariance Matrix
R0

Compute the Basic Reproduction Number
confint.egf

Confidence Intervals
egf-class

Description of Objects of Class egf
egf_control

Define Control Parameters
egf

Fit Nonlinear Mixed Effects Models of Epidemic Growth
coef.egf

Extract Coefficients and Random Effect Covariance Parameters
covid19.ontario

COVID-19 in Ontario, Canada
df.residual.egf

Extract the Residual Degrees of Freedom
egf_control_plot

Define Control Parameters for Plotting