#' @title Get model id
#'
#' @description
#' Get the model_id component of a JAGS object.
#'
#' @param object a JAGS object.
#' @param reference flag indicating whether to return the assigned unique reference
#' names or the original names (the default)
#' @param ... further arguments passed to or from other methods.
#' @return The model_id component of a JAGS object.
#' @seealso \code{\link{jaggernaut}}
#' @export
model_id <- function (object, reference = FALSE, ...) {
UseMethod("model_id", object)
}
#' @title Set model name(s)
#'
#' @description
#' Set the model_id component of a JAGS object.
#'
#' @usage
#' model_id(object) <- value
#' @param object a JAGS object.
#' @param value a string defining the model name in the JAGS dialect
#' of the BUGS language.
#' @seealso \code{\link{jaggernaut}}
#' @export
"model_id<-" <- function (object, value) {
UseMethod("model_id<-", object)
}
model_id.jagr_model <- function (object, ...) {
object$model_id
}
model_id_jagr_model <- function (object, ...) {
stopifnot(is.jagr_model(object))
model_id(object, ...)
}
#' @method model_id jags_model
#' @export
model_id.jags_model <- function (object, reference = FALSE, ...) {
assert_that(is.flag(reference) && noNA(reference))
if(reference)
return (names(models(object)))
if(is_one_model(object))
return (model_id(model(object), ...))
lapply(models(object), model_id_jagr_model, ...)
}
#' @method model_id jags_analysis
#' @export
model_id.jags_analysis <- function (object, reference = FALSE, ...) {
model_id(as.jags_model(object), reference = reference, ...)
}
"model_id<-.jagr_model" <- function (object, value) {
if(is.null(value))
value <- NA
assert_that(is.string(value) || is.na(value))
if(grepl("^Model\\d", value, perl = TRUE)) {
stop("`Model` immediately followed by 1-9 is a reserved model name")
}
object$model_id <- value
object
}
#' @method model_id<- jags_model
#' @export
"model_id<-.jags_model" <- function (object, value) {
if(is.list(value) && length(value) != nmodels(object))
stop("if value is a list it must be the same length as the number of models in object")
if(is.list(value))
names(value) <- NULL
models <- models(object)
for (i in 1:length(models)) {
if(!is.list(value)) {
model_id(models[[i]]) <- value
} else
model_id(models[[i]]) <- value[[i]]
}
models(object) <- models
rename_models(object)
}
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