Generates distinct and visually distinct colours for a set of input tags
using the default hue-based palette from ggplot2
(via scales::hue_pal()).
This is useful for assigning consistent colours to categorical labels in
plots, for example in an animation, where not all individuals always have
data in each frame.
Usage
atl_tag_cols(tags, option = "vector")
Arguments
- tags
A character or numeric vector of tags. Duplicate values are
ignored.
- option
A string indicating the output format. Either "vector"
for a named character vector of hex colors, or "table" for a
data.table with columns tag and colour. Default is
"vector".
Value
A named character vector of hex color codes if
option = "vector", or a data.table with two columns
(tag, colour) if
option = "table".
Examples
# Default output (named vector)
atl_tag_cols(c("1234", "2121", "9999"))
#> 1234 2121 9999
#> "#F8766D" "#00BA38" "#619CFF"
# Output as a data.table
atl_tag_cols(c("1234", "2121", "9999"), option = "table")
#> tag colour
#> <char> <char>
#> 1: 1234 #F8766D
#> 2: 2121 #00BA38
#> 3: 9999 #619CFF
