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#' rust: Ratio-of-Uniforms Simulation with Transformation
#'
#' Uses the multivariate generalized ratio-of-uniforms method to simulate from a
#' distribution with log-density \code{logf} (up to an additive constant).
#' \code{logf} must be bounded, perhaps after a transformation of variable.
#'
#' @details
#'
#' The main functions in the rust package are \code{\link{ru}} and
#' \code{\link{ru_rcpp}}, which implement the generalized ratio-of-uniforms
#' algorithm. The latter uses the Rcpp package to improve efficiency.
#' Also provided are two functions,
#' \code{\link{find_lambda}} and \code{\link{find_lambda_one_d}}, that may be
#' used to set a suitable value for the parameter \code{lambda} if Box-Cox
#' transformation is used prior to simulation.
#' If \code{\link{ru_rcpp}} is used the equivalent functions are
#' \code{find_lambda_rcpp} and \code{find_lambda_one_d_rcpp}
#' Basic \code{plot} and \code{summary} methods are also provided.
#'
#' See the following package vignettes for information:
#' \itemize{
#' \item{
#' \href{https://paulnorthrop.github.io/rust/articles/rust-a-vignette.html}{
#' Introducing rust} or \code{vignette("rust-a-vignette", package = "rust")}.
#' }
#' \item{
#' \href{https://paulnorthrop.github.io/rust/articles/rust-b-when-to-use-vignette.html}{
#' When can rust be used?} or
#' \code{vignette("rust-b-when-to-use-vignette", package = "rust")}.
#' }
#' \item{
#' \href{https://paulnorthrop.github.io/rust/articles/rust-c-using-rcpp-vignette.html}{
#' Rusting faster: Simulation using Rcpp} or
#' \code{vignette("rust-c-using-rcpp-vignette", package = "rust")}.
#' }
#' }
#'
#' @references Wakefield, J. C., Gelfand, A. E. and Smith, A. F. M. Efficient
#' generation of random variates via the ratio-of-uniforms method. Statistics
#' and Computing (1991) 1, 129-133.
#' \doi{10.1007/BF01889987}.
#' @references Box, G. and Cox, D. R. (1964) An Analysis of Transformations.
#' Journal of the Royal Statistical Society. Series B (Methodological), 26(2),
#' 211-252.
#' @references Eddelbuettel, D. and Francois, R. (2011). Rcpp: Seamless R and
#' C++ Integration. Journal of Statistical Software, 40(8), 1-18.
#' \doi{10.18637/jss.v040.i08}.
#' @references Eddelbuettel, D. (2013) Seamless R and C++ Integration with
#' Rcpp. Springer, New York. ISBN 978-1-4614-6867-7.
#'
#' @seealso \code{\link{ru}} and \code{\link{ru_rcpp}} to perform
#' ratio-of-uniforms sampling.
#' @seealso \code{\link{summary.ru}} for summaries of the simulated values
#' and properties of the ratio-of-uniforms algorithm.
#' @seealso \code{\link{plot.ru}} for a diagnostic plot.
#' @seealso \code{\link{find_lambda_one_d}} and
#' \code{\link{find_lambda_one_d_rcpp}} to produce (somewhat) automatically
#' a list for the argument \code{lambda} of \code{ru} for the
#' \code{d} = 1 case.
#' @seealso \code{\link{find_lambda}} and \code{\link{find_lambda_rcpp}}
#' to produce (somewhat) automatically
#' a list for the argument \code{lambda} of \code{ru} for any value of
#' \code{d}.
#'
#' @docType package
#' @importFrom stats runif
#' @useDynLib rust, .registration = TRUE
#' @importFrom Rcpp sourceCpp
"_PACKAGE"
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