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| Package: inlmisc | ||
| Title: Miscellaneous Functions for the USGS INL Project Office | ||
| Version: 0.3.5.9000 | ||
| Version: 0.4.0 | ||
| Authors@R: person(given=c("Jason", "C."), family="Fisher", role=c("aut", "cre"), email="[email protected]", comment=c(ORCID="0000-0001-9032-8912")) | ||
| Description: A collection of functions for creating high-level graphics, | ||
| performing raster-based analysis, processing MODFLOW-based models, | ||
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| #' Color Palette for Qualitative Data | ||
| #' | ||
| #' This function creates a vector of \code{n} contiguous colors from color schemes by Paul Tol (2012). | ||
| #' | ||
| #' @param n 'integer'. | ||
| #' Number of colors to be in the palette, the maximum is 21. | ||
| #' @param alpha 'numeric'. | ||
| #' Alpha transparency, parameter values range from 0 (fully transparent) to 1 (fully opaque). | ||
| #' Specify as \code{NULL} to exclude the alpha channel color component. | ||
| #' @param plot 'logical'. | ||
| #' Whether to display the color palette. | ||
| #' | ||
| #' @return Returns a 'character' vector of length \code{n} with elements of 7 or 9 characters, | ||
| #' "#" followed by the red, blue, green, and optionally alpha values in hexadecimal. | ||
| #' | ||
| #' @author J.C. Fisher, U.S. Geological Survey, Idaho Water Science Center | ||
| #' | ||
| #' @references | ||
| #' Tol, Paul, 2012, Colour Schemes: | ||
| #' SRON Technical Note, doc. no. SRON/EPS/TN/09-002, issue 2.2, 16 p., | ||
| #' accesed January 26, 2018 at \url{https://personal.sron.nl/~pault/colourschemes.pdf}. | ||
| #' | ||
| #' @keywords color | ||
| #' | ||
| #' @export | ||
| #' | ||
| #' @examples | ||
| #' GetTolColors(7, plot = TRUE) | ||
| #' | ||
| #' GetTolColors(21, alpha = 0.85, plot = TRUE) | ||
| #' | ||
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| GetTolColors <- function(n, alpha=1, plot=FALSE) { | ||
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| checkmate::assertInt(n, lower=1, upper=21) | ||
| checkmate::assertNumber(alpha, lower=0, upper=1, finite=TRUE, null.ok=TRUE) | ||
| checkmate::assertFlag(plot) | ||
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| # color schemes copied from Peter Carl's blog post, accessed January 26, 2018 at | ||
| # https://tradeblotter.wordpress.com/2013/02/28/the-paul-tol-21-color-salute/ | ||
| pal <- list(c("#4477AA"), | ||
| c("#4477AA", "#CC6677"), | ||
| c("#4477AA", "#DDCC77", "#CC6677"), | ||
| c("#4477AA", "#117733", "#DDCC77", "#CC6677"), | ||
| c("#332288", "#88CCEE", "#117733", "#DDCC77", "#CC6677"), | ||
| c("#332288", "#88CCEE", "#117733", "#DDCC77", "#CC6677", "#AA4499"), | ||
| c("#332288", "#88CCEE", "#44AA99", "#117733", "#DDCC77", "#CC6677", "#AA4499"), | ||
| c("#332288", "#88CCEE", "#44AA99", "#117733", "#999933", "#DDCC77", "#CC6677", "#AA4499"), | ||
| c("#332288", "#88CCEE", "#44AA99", "#117733", "#999933", "#DDCC77", "#CC6677", "#882255", "#AA4499"), | ||
| c("#332288", "#88CCEE", "#44AA99", "#117733", "#999933", "#DDCC77", "#661100", "#CC6677", "#882255", "#AA4499"), | ||
| c("#332288", "#6699CC", "#88CCEE", "#44AA99", "#117733", "#999933", "#DDCC77", "#661100", "#CC6677", "#882255", "#AA4499"), | ||
| c("#332288", "#6699CC", "#88CCEE", "#44AA99", "#117733", "#999933", "#DDCC77", "#661100", "#CC6677", "#AA4466", "#882255", "#AA4499"), | ||
| c("#882E72", "#B178A6", "#D6C1DE", "#1965B0", "#5289C7", "#7BAFDE", "#4EB265", "#90C987", "#CAE0AB", "#F7EE55", "#F6C141", "#F1932D", "#E8601C"), | ||
| c("#882E72", "#B178A6", "#D6C1DE", "#1965B0", "#5289C7", "#7BAFDE", "#4EB265", "#90C987", "#CAE0AB", "#F7EE55", "#F6C141", "#F1932D", "#E8601C", "#DC050C"), | ||
| c("#114477", "#4477AA", "#77AADD", "#117755", "#44AA88", "#99CCBB", "#777711", "#AAAA44", "#DDDD77", "#771111", "#AA4444", "#DD7777", "#771144", "#AA4477", "#DD77AA"), | ||
| c("#771155", "#AA4488", "#CC99BB", "#114477", "#4477AA", "#77AADD", "#117777", "#44AAAA", "#77CCCC", "#777711", "#AAAA44", "#DDDD77", "#774411", "#AA7744", "#DDAA77", "#771122"), | ||
| c("#771155", "#AA4488", "#CC99BB", "#114477", "#4477AA", "#77AADD", "#117777", "#44AAAA", "#77CCCC", "#777711", "#AAAA44", "#DDDD77", "#774411", "#AA7744", "#DDAA77", "#771122", "#AA4455"), | ||
| c("#771155", "#AA4488", "#CC99BB", "#114477", "#4477AA", "#77AADD", "#117777", "#44AAAA", "#77CCCC", "#777711", "#AAAA44", "#DDDD77", "#774411", "#AA7744", "#DDAA77", "#771122", "#AA4455", "#DD7788"), | ||
| c("#771155", "#AA4488", "#CC99BB", "#114477", "#4477AA", "#77AADD", "#117777", "#44AAAA", "#77CCCC", "#117744", "#44AA77", "#88CCAA", "#777711", "#AAAA44", "#DDDD77", "#774411", "#AA7744", "#DDAA77", "#771122"), | ||
| c("#771155", "#AA4488", "#CC99BB", "#114477", "#4477AA", "#77AADD", "#117777", "#44AAAA", "#77CCCC", "#117744", "#44AA77", "#88CCAA", "#777711", "#AAAA44", "#DDDD77", "#774411", "#AA7744", "#DDAA77", "#771122", "#AA4455"), | ||
| c("#771155", "#AA4488", "#CC99BB", "#114477", "#4477AA", "#77AADD", "#117777", "#44AAAA", "#77CCCC", "#117744", "#44AA77", "#88CCAA", "#777711", "#AAAA44", "#DDDD77", "#774411", "#AA7744", "#DDAA77", "#771122", "#AA4455", "#DD7788")) | ||
| col <- pal[[n]] | ||
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| if (is.finite(alpha)) col <- grDevices::adjustcolor(col, alpha.f=alpha) | ||
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| if (plot) { | ||
| graphics::plot.default(0, 0, type="n", xlim=c(0, 1), ylim=c(0, 1), axes=FALSE, xlab="", ylab="") | ||
| graphics::rect(0:(n - 1) / n, 0, 1:n / n, 1, col=col, border="#D3D3D3") | ||
| } | ||
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| return(col) | ||
| } |
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