seecol
provides an interface to plotting (or "seeing")
the colors of a palette or comparing multiple color palettes.
seecol( pal = "unikn_all", n = "all", alpha = NA, hex = NULL, rgb = NULL, col_bg = NULL, col_brd = NULL, lwd_brd = NULL, grid = TRUE, title = NA, mar_note = NA, pal_names = NA, ... )
pal | A single color palette (as a vector of colors),
multiple color palettes (as a list),
or a recognized keyword (as a character string).
Default: Recognized keywords are:
|
---|---|
n | Number of colors to show or use.
If |
alpha | A factor modifying the opacity alpha
(as in |
hex | Should HEX color values be shown?
Default: |
rgb | Should RGB color values be shown?
Default: |
col_bg | Color of plot background.
Default: |
col_brd | Color of shape borders (if shown).
Default: |
lwd_brd | Line width of shape borders (if shown).
Default: |
grid | Show grid in the color plot?
Default: |
title | Plot title (as a character string).
Default: |
mar_note | Optional margin note (on bottom right).
Default: |
pal_names | Names of color palettes or colors
(as a character vector).
Default: |
... | Other graphical parameters
(passed to |
seecol
has two main modes, based on the contents of its pal
argument:
if pal = "unikn_all"
or a list of multiple color palettes:
Plot visual vectors of all current color palettes for comparing them.
if pal
is set to a specific color palette (or a vector of multiple colors or color palettes):
Plot the current color palette and optional details on its colors.
The title
and pal_names
arguments add control over plotted text labels.
However, the length of a character vector provided to pal_names
must correspond
to the number of (custom) color palettes or colors.
usecol
for using a color palette;
defpal
to define new color palettes;
grepal
for finding named colors;
shades_of
to define shades of a given color;
pal_unikn
for the default uni.kn color palette.
Other color functions:
grepal()
,
newpal()
,
shades_of()
,
usecol()
# See multiple color palettes: seecol() # default: seecol(pal = "all")# See details of one color palette: seecol(pal_unikn) # see a specific color palette# Combining colors or color palettes: seecol(c(rev(pal_seeblau), pal_seegruen)) # combine color palettes# Using n to reduce or extend color palettes: seecol(n = 3) # viewing reduced ranges of all palettesseecol(n = 12) # viewing extended ranges of all palettesseecol(pal_unikn, n = 5, title = "Reduced version of pal_unikn (n = 5)") # reducing pal_uniknseecol(pal_seeblau, n = 8, title = "Extended version of pal_seeblau (n = 8)") # extending pal_seeblau# Combining and extending color palettes: seecol(c(rev(pal_seeblau), "white", pal_bordeaux), n = 17, title = "Diverging custom color palette (with 17 colors)")# Defining custom color palettes: pal_mpg <- c("#007367", "white", "#D0D3D4") # mixing hex values and color names names(pal_mpg) <- c("mpg green", "mpg white", "mpg grey") # color names pal_bdg <- usecol(c(Bordeaux, "gold"), n = 10) # using usecol # Viewing extended color palette: seecol(pal_mpg, n = 9, title = "Custom color palette of the Max Planck Society")# Comparing (and labeling) custom color palettes: seecol(list(pal_mpg, pal_bdg, pal_unikn), n = 7, pal_names = c("Max Planck", "Bordeaux-Gold", "Uni Konstanz"), title = "Comparing and labeling custom color palettes")## Viewing color palettes from other packages: # library(RColorBrewer) # seecol(brewer.pal(name = "RdBu", n = 11)) # viewing "RdBu" palette from RColorBrewer ## Extending color palettes: # seecol(brewer.pal(name = "RdBu", n = 11), n = 15) # extending palette to 15 colors