R: palettes

Some palletes

library(RColorBrewer)
library(viridis)
library(raster)

nofColors <- 8;

palettes <- c(
      rainbow       (nofColors),
      palette       (         ), # palette has 8 colors
      heat.colors   (nofColors),
      terrain.colors(nofColors),
      topo.colors   (nofColors),
      cm.colors     (nofColors),
      viridis       (nofColors)
);

nofPalettes <- length(palettes) / nofColors;

grid <- raster(
            ncols =  nofColors,
            nrows =  nofPalettes,
            xmn   =  0,
            xmx   =  nofColors,
            ymn   =  0,
            ymx   =  nofPalettes
);

values(grid) <- 1:(nofPalettes * nofColors)

par(mar=rep(0.5, 4))

plot(grid,
    col    = palettes,
    legend = FALSE,
    axes   = 0,
    box    = FALSE
);

See also

Links