cetcolor package is
designed to bring to R the 56 colour maps created by Peter
Kovesi that avoid points
of locally high colour contrast leading to the perception of false
anomalies in your data when there is none. The colour maps have been
designed to avoid this phenomenon by having uniform perceptual contrast
over their whole range.
cetcolor package is available on both CRAN and GitHub. The CRAN
version is considered stable while the GitHub version is in a state of
development and may break.
You can install the stable version of the
cetcolor package with:
For the development version, you can opt for:
# Load the Library library("cetcolor") # Get RGB Hexadecimals for graphing cet_pal(5, name = "blues") #>  "#F1F1F1" "#C0D3EB" "#93B5DD" "#7197C1" "#3B7CB2" # Sample use with ggplot2 library("ggplot2") ggplot(faithfuld, aes(waiting, eruptions)) + geom_raster(aes(fill = density)) + theme_bw() + theme(panel.grid=element_blank()) -> g library("gridExtra") # Frequently used colour maps have "nicknames" see ?cet_color_maps grid.arrange( g + scale_fill_gradientn(colours = cet_pal(5, name = "fire")), g + scale_fill_gradientn(colours = cet_pal(5, name = "inferno")), g + scale_fill_gradientn(colours = cet_pal(5, name = "blues")), g + scale_fill_gradientn(colours = cet_pal(5, name = "kgy")), ncol = 2, nrow = 2 )
# Show a panel of possible values (without nicknames) display_cet_all()
cet_pal(n, name), and colour map displays.
ggplot2as shown for
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