R/col.fastR.R

In rpruim/fastR2: Foundations and Applications of Statistics Using R (2nd Edition)

#' Lattice Theme
#' 
#' A theme for use with lattice graphics.
#' 
#' 
#' @param bw whether color scheme should be "black and white"
#' @param lty vector of line type codes
#' @return Returns a list that can be supplied as the \code{theme} to
#' \code{\link{trellis.par.set}()}.
#' @note This theme was used in the production of the book \cite{Foundations
#' and Applications of Statistics}
#' @author Randall Pruim
#' @seealso \code{\link{trellis.par.set}}, \code{\link{show.settings}}
#' @keywords graphics
#' @importFrom grDevices colorRampPalette gray heat.colors 
#' @export
#' @examples
#' 
#' trellis.par.set(theme=col.fastR(bw=TRUE))
#' show.settings()
#' trellis.par.set(theme=col.fastR())
#' show.settings()
col.fastR <- function (bw = FALSE, lty = 1:7) 
{
    aBlue <- grDevices::colorRampPalette(c("white", "navy"))(10)[8]
    paleBlue <- grDevices::colorRampPalette(c("white", "navy"))(10)[6]
    lightBlue <- grDevices::colorRampPalette(c("white", "steelblue"))(10)[5]
    veryLightBlue <- grDevices::colorRampPalette(c("white", "steelblue"))(12)[3]
    darkBlue <- grDevices::colorRampPalette(c("white", "navy"))(10)[9]
    paleGreen <- grDevices::colorRampPalette(c("white", "darkGreen"))(10)[8]
    if (bw) {
        return(list(background = list(col = "transparent"), axis.line = list(col = "gray30"), 
            axis.text = list(col = "gray30"), plot.polygon = list(col = "gray75"), 
            box.rectangle = list(col = "gray10"), box.umbrella = list(col = "gray10", 
                lty = 1), box.dot = list(col = "gray10"), dot.line = list(col = "gray50"), 
            dot.symbol = list(col = "gray30", pch = 16), plot.line = list(col = "black", 
                lwd = 2), plot.symbol = list(col = "black", fill = "gray75", 
                pch = 16), regions = list(col = grDevices::gray((1:100)/100)), 
            reference.line = list(col = "gray50"), add.line = list(lty = 1, 
                col = "gray75", lwd = 2), superpose.polygon = list(col = c("gray30", 
                "gray70", "black", "gray50", "gray20", "gray75", 
                "gray60", "gray40"), fill = c("gray75")), superpose.line = list(lty = lty, 
                lwd = 2, col = c("gray30", "gray70", "black", 
                  "gray50", "gray20", "gray75", "gray60", "gray40")), 
            superpose.symbol = list(pch = c(16, 15, 18, 1, 3, 
                6, 0, 5), cex = rep(0.7, 7), col = c("gray30", 
                "gray70", "black", "gray50", "gray20", "gray75", 
                "gray60", "gray40")), strip.background = list(alpha = 1, 
                col = c("gray75", "gray65")), strip.shingle = list(alpha = 1, 
                col = c("gray60", "gray30")), par.strip.text = list(cex = 0.5)))
    }
    else {
        return(list(background = list(col = "transparent"), plot.polygon = list(col = paleBlue), 
            box.rectangle = list(col = darkBlue), box.umbrella = list(col = darkBlue), 
            dot.line = list(col = "#e8e8e8"), dot.symbol = list(col = darkBlue, 
                pch = 16), plot.line = list(lwd = 2, col = darkBlue), 
            plot.symbol = list(col = darkBlue, pch = 16), regions = list(col = grDevices::heat.colors(100)), 
            reference.line = list(col = "#e8e8e8"), add.line = list(lty = 1, 
                col = "gray20", lwd = 2), superpose.line = list(lty = lty, 
                lwd = 2, col = c(darkBlue, "lightskyblue3", "darkgreen", 
                  "turquoise", "orange", "purple", "pink", "lightgreen")), 
            superpose.symbol = list(pch = c(16, 15, 18, 1, 3, 
                6, 0, 5), cex = rep(0.7, 7), col = c(darkBlue, 
                "lightskyblue3", "darkgreen", "turquoise", "orange", 
                "purple", "pink", "lightgreen")), strip.background = list(alpha = 1, 
                col = c("#ffe5cc", veryLightBlue, "#ccffff", 
                  "#cce6ff", "#ffccff", "#ffcccc", "#ffffcc")), 
            strip.shingle = list(alpha = 1, col = c("#ff7f00", 
                darkBlue, "#00ffff", "#0080ff", "#ff00ff", "#ff0000", 
                "#ffff00")), par.strip.text = list(cex = 0.5)))
    }
}