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saemix (version 2.3)

Stochastic Approximation Expectation Maximization (SAEM) Algorithm

Description

The SAEMIX package implements the Stochastic Approximation EM algorithm for parameter estimation in (non)linear mixed effects models. The SAEM algorithm: - computes the maximum likelihood estimator of the population parameters, without any approximation of the model (linearisation, quadrature approximation,...), using the Stochastic Approximation Expectation Maximization (SAEM) algorithm, - provides standard errors for the maximum likelihood estimator - estimates the conditional modes, the conditional means and the conditional standard deviations of the individual parameters, using the Hastings-Metropolis algorithm. Several applications of SAEM in agronomy, animal breeding and PKPD analysis have been published by members of the Monolix group ().

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Version

Install

install.packages('saemix')

Monthly Downloads

556

Version

2.3

License

GPL (>= 2)

Maintainer

Emmanuelle Comets

Last Published

December 6th, 2019

Functions in saemix (2.3)

PD1.saemix

Data simulated according to an Emax response model, in SAEM format
SaemixData-class

Class "SaemixData"
read-methods

Methods for Function read
logLik

Extract likelihood from a saemixObject resulting from a call to saemix
psi-methods

Functions to extract the individual estimates of the parameters and random effects
llis.saemix

Log-likelihood using Importance Sampling
map.saemix

Estimates of the individual parameters (conditional mode)
oxboys.saemix

Heights of Boys in Oxford
SaemixObject-class

Class "SaemixObject"
showall-methods

Methods for Function showall
simul.saemix

Perform simulations under the model
SaemixRes-class

Class "SaemixRes"
[,SaemixModel-method

Get/set methods for SaemixModel object
[-methods

Methods for "get" Function [
default.saemix.plots

Wrapper functions to produce certain sets of default plots
[,SaemixObject-method

Get/set methods for SaemixObject object
[<--methods

Methods for "set" Function [<-
[

Get/set methods for SaemixData object
plot,SaemixModel-method

Plot model predictions using an SaemixModel object
plot,SaemixData-method

Plot of longitudinal data
llgq.saemix

Log-likelihood using Gaussian Quadrature
initialize-methods

Methods for Function initialize
plot,SaemixObject-method

General plot function from SAEM
plot-methods

Methods for Function plot
saemix

Stochastic Approximation Expectation Maximization (SAEM) algorithm
resid.saemix

Extract Model Residuals
saemix-package

Stochastic Approximation Expectation Maximization (SAEM) algorithm for non-linear mixed effects models
saemix.internal

Internal saemix objects
coef.saemix

Extract coefficients from a saemix fit
saemix.plot.data

Functions implementing each type of plot in SAEM
show-methods

Methods for Function show
subset.SaemixData

Data subsetting
saemixModel

Function to create a SaemixModel object
[,SaemixRes-method

Get/set methods for SaemixRes object
saemix.plot.select

Plots of the results obtained by SAEM
validate.names

Name validation (## )Helper function not intended to be called by the user)
transformContCov

Transform covariates
fitted.saemix

Extract Model Predictions
fim.saemix

Computes the Fisher Information Matrix by linearisation
saemix.predict

Compute model predictions after an saemix fit
saemix.plot.setoptions

Function setting the default options for the plots in SAEM
theo.saemix

Pharmacokinetics of theophylline, in SAEM format
transformCatCov

Transform covariates
yield.saemix

Wheat yield in crops treated with fertiliser, in SAEM format
vcov

Extracts the Variance-Covariance Matrix for a Fitted Model Object
predict-methods

Methods for Function predict
print-methods

Methods for Function print
saemixControl

List of options for running the algorithm SAEM
saemixData

Function to create a SaemixData object
summary-methods

Methods for Function summary
testnpde

Tests for normalised prediction distribution errors
conddist.saemix

Estimate conditional mean and variance of individual parameters using the MCMC algorithm
SaemixModel-class

Class "SaemixModel"
cow.saemix

Evolution of the weight of 560 cows, in SAEM format