Description Usage Arguments Details Value References Examples
Visualization of color palettes in columns of color swatches.
1 2 3 4 5 6 7 8 9 10 11 12 13 
x 
character vector/matrix (or list of character vectors/matrices) containing color hex codes. 
... 
further (possibly named) character vectors/matrices with color hex codes. 
nrow 
integer specifying the maximal number of rows of swatches. (The actual number might be lower in order to balance the rows used in each column.) 
border 
color for border of individual color rectangles. By default

sborder 
color for border of the entire palette swatch. By default

off 
numeric vector of length 2. Offset in horizontal and vertical direction
(specified as a fraction of the rectangle for one color). By default, the
horizontal offset is 
mar 
numeric vector of length 4, specifying the margins of column of color swatches. 
line 
numeric. Line in which the palette names (if any) are printed in the margin. 
cex, font 
numeric vectors of length 1 or 2. Specifications for the annotation text for the individual palettes and lists of palettes, respectively. 
cvd 
logical or character indicating whether color vision deficiencies
should be emulated with 
The function swatchplot
is a convenience function for displaying
collections of palettes that can be specified as lists or matrices of
character color specifications. Essentially, the function just calls
rect
but the valueadded are the heuristics used
for choosing default labels, margins, spacings, borders. These are selected
to work well for hcl_palettes
and might need further tweaking
in future versions.
swatchplot
invisibly returns a matrix with colors and annotations.
Zeileis A, Fisher JC, Hornik K, Ihaka R, McWhite CD, Murrell P, Stauffer R, Wilke CO (2020). “colorspace: A Toolbox for Manipulating and Assessing Colors and Palettes.” Journal of Statistical Software, 96(1), 1–49. doi: 10.18637/jss.v096.i01
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  ## swatches of several palette vectors
swatchplot(
"Hue" = sequential_hcl(5, h = c(0, 300), c = c(60, 60), l = 65),
"Chroma" = sequential_hcl(5, h = 0, c = c(100, 0), l = 65, rev = TRUE, power = 1),
"Luminance" = sequential_hcl(5, h = 260, c = c(25, 25), l = c(25, 90), rev = TRUE, power = 1),
off = 0
)
## swatches of named palette matrices
bprg < c("Blues", "Purples", "Reds", "Greens")
swatchplot(
"Singlehue" = t(sapply(paste(bprg, 2), sequential_hcl, n = 7)),
"Singlehue (advanced)" = t(sapply(paste(bprg, 3), sequential_hcl, n = 7)),
"Multihue (advanced)" = t(sapply(bprg, sequential_hcl, n = 7)),
nrow = 5
)
## swatches with color vision deficiency emulation
swatchplot(sequential_hcl(7, "Viridis"), cvd = TRUE)
swatchplot(
"YlGnBu" = sequential_hcl(7, "YlGnBu"),
"Viridis" = sequential_hcl(7, "Viridis"),
cvd = c("deutan", "desaturate")
)

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