R/itns-package.R

In gitrman/itns: Datasets from the book Introduction to the New Statistics

#' Datasets for the book Introduction to the New Statistics
#' 
#' The itns package contains datasets from psychology studies 
#' used in book \emph{Introduction to the New Statistics} by Geoff Cumming 
#' and Robert Calin-Jageman, published by Routledge in late 2016.
#' 
#' The original source of the datasets is a series of Excel files found on the 
#' \emph{Introduction to the New Statistics} website.  Those Excel files have been 
#' converted to R data frames and bundled together in the itns package. In addition: 
#' 
#' \itemize{
#'    \item All variable names have been converted to lower case.
#'    \item For some data sets, variable names have been altered 
#'          in order to conform with R data naming rules
#'          (e.g., some variable names in the Excel files started with a number, which 
#'          is not allowed in R).
#'    \item Some datasets have been tidied using the \code{tidyr}  package 
#'          in order to facilitate analyses in R.
#' }
#' 
#' The datasets can be used to replicate analyses that appear in \emph{Introduction to
#' the New Statistics}, and to work through the book's end-of-chapter exercises.
#' 
#' Also included is a function to compute Cohen's d effect size for paired samples.
#' 
#'@references
#'Cumming, G., & Calin-Jageman, R. (2017).
#'  \emph{Introduction to the New Statistics}. New York; Routledge.
#'   
#' @docType package
#' @name itns-package
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