#' Example Data Sets
#'
#' @details Several data sets are contained in the package
#' as examples. Each _simulates_ an `rset` object but the `splits`
#' columns are not included to save space.
#'
#' \itemize{
#' \item{`precise_example` contains the results of the classification
#' analysis of a real data set using 10-fold CV. The holdout data
#' sets contained thousands of examples and have precise
#' performance estimates. Three models were fit to the original
#' data and several performance metrics are included.}
#'
#' \item{`noisy_example` was also generated from a regression data
#' simulation. The original data set was small (50 samples) and
#' 10-repeated of 10-fold CV were used with four models. There is
#' an excessive of variability in the results (probably more than
#' the resample-to-resample variability). The RMSE distributions
#' show fairly right-skewed distributions.}
#'
#' \item{`concrete_example` contains the results of the regression case
#' study from the book _Applied Predictive Modeling_. The original
#' data set contained 745 samples in the training set. 10-repeats
#' of 10-fold CV was also used and 13 models were fit to the data.}
#'
#' \item{`ts_example` is from a data set where rolling-origin forecast
#' resampling was used. Each assessment set is the summary of 14
#' observations (i.e. 2 weeks). The analysis set consisted of a
#' base of about 5,500 samples plus the previous assessment sets.
#' Four regression models were applied to these data.}
#'
#' \item{`ex_object` objects were generated from the `two_class_dat` data in
#' the `modeldata` package. Basic 10-fold cross validation was used to evaluate
#' the models. The `posterior_samples` object is samples of the posterior
#' distribution of the model ROC values while `contrast_samples` are posterior
#' probabilities form the differences in ROC values.}
#' }
#'
#' @name precise_example
#' @aliases precise_example
#' @docType data
#' @return Tibbles with the additional class `rset`
#' @keywords datasets
#' @examples
#' data(precise_example)
#' precise_example
NULL
#' @name noisy_example
#' @rdname precise_example
#' @aliases noisy_example
#' @docType data
#' @keywords datasets
NULL
#' @name concrete_example
#' @rdname precise_example
#' @aliases concrete_example
#' @docType data
#' @keywords datasets
NULL
#' @name ts_example
#' @rdname precise_example
#' @aliases ts_example
#' @docType data
#' @keywords datasets
NULL
#' @name ex_object
#' @rdname precise_example
#' @aliases posterior_samples
#' @aliases contrast_samples
#' @docType data
#' @keywords datasets
NULL
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