R/smoking.r

#' Smoking data
#'
#' This dataset contains results of 24 trials comparing four interventions to promote smoking cessation.
#'
#' @format
#' A data frame with 50 observations on the following 5 variables.
#' \describe{
#' \item{\code{study}}{Study ID.}
#' \item{\code{treatment}}{A categorical variable that indicates the type of intervention (\code{Group counselling}, \code{Individual counselling}, \code{No contact}, \code{Self help}).}
#' \item{\code{trt}}{A numerical variable that indicates the type of intervention, 1:\code{No contact}; 2:\code{Self help}; 3:\code{Individual counselling}; 4:\code{Group counselling}.}
#' \item{\code{d}}{Number of successes of the intervention.}
#' \item{\code{n}}{Number of participants of the intervention.}
#' }
#' @references
#' Lu, G., Ades, A. E. (2006).
#' Assessing evidence inconsistency in mixed treatment comparisons.
#' \emph{Journal of the American Statistical Association} \strong{101}:447-459.
#'
#' Higgins, J. P. T., Jackson, D., Barrett, J. K. et al (2012).
#' Consistency and inconsistency in network meta-analysis: concepts and models for multi-arm studies.
#' \emph{Research Synthesis Methods} \strong{3}:98-110.
#' @examples
#' data(smoking)
#' head(smoking)
#' @name smoking
#' @rdname smoking
#' @docType data
#' @keywords data
NULL
nshi-stat/netiim3 documentation built on May 6, 2019, 10:51 p.m.