R/colors.R

In fmds: Multidimensional Scaling Development Kit

#' Color data
#'
#' Dissimilarities are one minus the original ratings.
#' 31 subjects rated 91 combinations for similarity on a 5-point scale (0-4).
#' The ratings were averaged and divided by 4 to obtain similarities between 0 and 1.
#' The 14 colors had wavelengths 434, 445, 465, 472, 490, 504, 537, 555, 54, 600, 610, 628, 651, and 674.
#'
#' @name colors
#' @docType data
#'
#' @keywords dataset
#'
#' @format 14 x 14 dissimilarity matrix
#' \itemize{
#'   \item V1: dissimilarities for V1.
#'   \item V2: dissimilarities for V2.
#'   \item V3: dissimilarities for V3.
#'   \item V4: dissimilarities for V4.
#'   \item V5: dissimilarities for V5.
#'   \item V6: dissimilarities for V6.
#'   \item V7: dissimilarities for V7.
#'   \item V8: dissimilarities for V8.
#'   \item V9: dissimilarities for V9.
#'   \item V10: dissimilarities for V10.
#'   \item V11: dissimilarities for V11.
#'   \item V12: dissimilarities for V12.
#'   \item V13: dissimilarities for V13.
#'   \item V14: dissimilarities for V14.
#' }
#'
#' @references Ekman (1954). Dimensions of color vision. Journal of Psychology, 38, 467-474.
"colors"