diff options
Diffstat (limited to 'R/saem.R')
| -rw-r--r-- | R/saem.R | 19 |
1 files changed, 10 insertions, 9 deletions
@@ -23,6 +23,7 @@ utils::globalVariables(c("predicted", "std")) #' are done in 'saemix' for the supported cases, i.e. (as of version 1.1.2) #' SFO, FOMC, DFOP and HS without fixing `parent_0`, and SFO or DFOP with #' one SFO metabolite. +#' @param error_model Possibility to override the error model used in the mmkin object #' @param degparms_start Parameter values given as a named numeric vector will #' be used to override the starting values obtained from the 'mmkin' object. #' @param test_log_parms If TRUE, an attempt is made to use more robust starting @@ -131,6 +132,7 @@ saem <- function(object, ...) UseMethod("saem") #' @export saem.mmkin <- function(object, transformations = c("mkin", "saemix"), + error_model = "auto", degparms_start = numeric(), test_log_parms = TRUE, conf.level = 0.6, @@ -149,6 +151,7 @@ saem.mmkin <- function(object, call <- match.call() transformations <- match.arg(transformations) m_saemix <- saemix_model(object, verbose = verbose, + error_model = error_model, degparms_start = degparms_start, test_log_parms = test_log_parms, conf.level = conf.level, solution_type = solution_type, @@ -278,7 +281,8 @@ print.saem.mmkin <- function(x, digits = max(3, getOption("digits") - 3), ...) { #' @return An [saemix::SaemixModel] object. #' @export saemix_model <- function(object, solution_type = "auto", - transformations = c("mkin", "saemix"), degparms_start = numeric(), + transformations = c("mkin", "saemix"), error_model = "auto", + degparms_start = numeric(), covariance.model = "auto", no_random_effect = NULL, covariates = NULL, covariate_models = NULL, test_log_parms = FALSE, conf.level = 0.6, verbose = FALSE, ...) @@ -608,21 +612,18 @@ saemix_model <- function(object, solution_type = "auto", } } - error.model <- switch(object[[1]]$err_mod, + if (identical(error_model, "auto")) { + error_model = object[[1]]$err_mod + } + error.model <- switch(error_model, const = "constant", tc = "combined", obs = "constant") - if (object[[1]]$err_mod == "obs") { + if (error_model == "obs") { warning("The error model 'obs' (variance by variable) can currently not be transferred to an saemix model") } - error.init <- switch(object[[1]]$err_mod, - const = c(a = mean(sapply(object, function(x) x$errparms)), b = 1), - tc = c(a = mean(sapply(object, function(x) x$errparms[1])), - b = mean(sapply(object, function(x) x$errparms[2]))), - obs = c(a = mean(sapply(object, function(x) x$errparms)), b = 1)) - degparms_psi0 <- degparms_optim degparms_psi0[names(degparms_start)] <- degparms_start psi0_matrix <- matrix(degparms_psi0, nrow = 1, |