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diff --git a/man/saem.Rd b/man/saem.Rd new file mode 100644 index 00000000..d5a8f17e --- /dev/null +++ b/man/saem.Rd @@ -0,0 +1,155 @@ +% Generated by roxygen2: do not edit by hand +% Please edit documentation in R/saem.R +\name{saem} +\alias{saem} +\alias{saem.mmkin} +\alias{print.saem.mmkin} +\alias{saemix_model} +\alias{saemix_data} +\title{Fit nonlinear mixed models with SAEM} +\usage{ +saem(object, ...) + +\method{saem}{mmkin}( + object, + transformations = c("mkin", "saemix"), + degparms_start = numeric(), + solution_type = "auto", + control = list(displayProgress = FALSE, print = FALSE, save = FALSE, save.graphs = + FALSE), + verbose = FALSE, + quiet = FALSE, + ... +) + +\method{print}{saem.mmkin}(x, digits = max(3, getOption("digits") - 3), ...) + +saemix_model( + object, + solution_type = "auto", + transformations = c("mkin", "saemix"), + degparms_start = numeric(), + verbose = FALSE, + ... +) + +saemix_data(object, verbose = FALSE, ...) +} +\arguments{ +\item{object}{An \link{mmkin} row object containing several fits of the same +\link{mkinmod} model to different datasets} + +\item{\dots}{Further parameters passed to \link[saemix:saemixModel]{saemix::saemixModel}.} + +\item{transformations}{Per default, all parameter transformations are done +in mkin. If this argument is set to 'saemix', parameter transformations +are done in 'saemix' for the supported cases. Currently this is only +supported in cases where the initial concentration of the parent is not fixed, +SFO or DFOP is used for the parent and there is either no metabolite or one.} + +\item{degparms_start}{Parameter values given as a named numeric vector will +be used to override the starting values obtained from the 'mmkin' object.} + +\item{solution_type}{Possibility to specify the solution type in case the +automatic choice is not desired} + +\item{control}{Passed to \link[saemix:saemix]{saemix::saemix}} + +\item{verbose}{Should we print information about created objects of +type \link[saemix:SaemixModel-class]{saemix::SaemixModel} and \link[saemix:SaemixData-class]{saemix::SaemixData}?} + +\item{quiet}{Should we suppress the messages saemix prints at the beginning +and the end of the optimisation process?} + +\item{x}{An saem.mmkin object to print} + +\item{digits}{Number of digits to use for printing} +} +\value{ +An S3 object of class 'saem.mmkin', containing the fitted +\link[saemix:SaemixObject-class]{saemix::SaemixObject} as a list component named 'so'. The +object also inherits from 'mixed.mmkin'. + +An \link[saemix:SaemixModel-class]{saemix::SaemixModel} object. + +An \link[saemix:SaemixData-class]{saemix::SaemixData} object. +} +\description{ +This function uses \code{\link[saemix:saemix]{saemix::saemix()}} as a backend for fitting nonlinear mixed +effects models created from \link{mmkin} row objects using the Stochastic Approximation +Expectation Maximisation algorithm (SAEM). +} +\details{ +An mmkin row object is essentially a list of mkinfit objects that have been +obtained by fitting the same model to a list of datasets using \link{mkinfit}. + +Starting values for the fixed effects (population mean parameters, argument +psi0 of \code{\link[saemix:saemixModel]{saemix::saemixModel()}} are the mean values of the parameters found +using \link{mmkin}. +} +\examples{ +\dontrun{ +ds <- lapply(experimental_data_for_UBA_2019[6:10], + function(x) subset(x$data[c("name", "time", "value")])) +names(ds) <- paste("Dataset", 6:10) +f_mmkin_parent_p0_fixed <- mmkin("FOMC", ds, + state.ini = c(parent = 100), fixed_initials = "parent", quiet = TRUE) +f_saem_p0_fixed <- saem(f_mmkin_parent_p0_fixed) + +f_mmkin_parent <- mmkin(c("SFO", "FOMC", "DFOP"), ds, quiet = TRUE) +f_saem_sfo <- saem(f_mmkin_parent["SFO", ]) +f_saem_fomc <- saem(f_mmkin_parent["FOMC", ]) +f_saem_dfop <- saem(f_mmkin_parent["DFOP", ]) + +# The returned saem.mmkin object contains an SaemixObject, therefore we can use +# functions from saemix +library(saemix) +compare.saemix(list(f_saem_sfo$so, f_saem_fomc$so, f_saem_dfop$so)) +plot(f_saem_fomc$so, plot.type = "convergence") +plot(f_saem_fomc$so, plot.type = "individual.fit") +plot(f_saem_fomc$so, plot.type = "npde") +plot(f_saem_fomc$so, plot.type = "vpc") + +f_mmkin_parent_tc <- update(f_mmkin_parent, error_model = "tc") +f_saem_fomc_tc <- saem(f_mmkin_parent_tc["FOMC", ]) +compare.saemix(list(f_saem_fomc$so, f_saem_fomc_tc$so)) + +sfo_sfo <- mkinmod(parent = mkinsub("SFO", "A1"), + A1 = mkinsub("SFO")) +fomc_sfo <- mkinmod(parent = mkinsub("FOMC", "A1"), + A1 = mkinsub("SFO")) +dfop_sfo <- mkinmod(parent = mkinsub("DFOP", "A1"), + A1 = mkinsub("SFO")) +# The following fit uses analytical solutions for SFO-SFO and DFOP-SFO, +# and compiled ODEs for FOMC that are much slower +f_mmkin <- mmkin(list( + "SFO-SFO" = sfo_sfo, "FOMC-SFO" = fomc_sfo, "DFOP-SFO" = dfop_sfo), + ds, quiet = TRUE) +# saem fits of SFO-SFO and DFOP-SFO to these data take about five seconds +# each on this system, as we use analytical solutions written for saemix. +# When using the analytical solutions written for mkin this took around +# four minutes +f_saem_sfo_sfo <- saem(f_mmkin["SFO-SFO", ]) +f_saem_dfop_sfo <- saem(f_mmkin["DFOP-SFO", ]) +# We can use print, plot and summary methods to check the results +print(f_saem_dfop_sfo) +plot(f_saem_dfop_sfo) +summary(f_saem_dfop_sfo, data = TRUE) + +# The following takes about 6 minutes +#f_saem_dfop_sfo_deSolve <- saem(f_mmkin["DFOP-SFO", ], solution_type = "deSolve", +# control = list(nbiter.saemix = c(200, 80), nbdisplay = 10)) + +#saemix::compare.saemix(list( +# f_saem_dfop_sfo$so, +# f_saem_dfop_sfo_deSolve$so)) + +# If the model supports it, we can also use eigenvalue based solutions, which +# take a similar amount of time +#f_saem_sfo_sfo_eigen <- saem(f_mmkin["SFO-SFO", ], solution_type = "eigen", +# control = list(nbiter.saemix = c(200, 80), nbdisplay = 10)) +} +} +\seealso{ +\link{summary.saem.mmkin} \link{plot.mixed.mmkin} +} |