# color vector
colvec <- c("red", "blue", "violet", "green", "#ff0066")
# just one color
mix.color(colvec[1], type = 1, alpha = 1)
# add two colors
mix.color(colvec[1:2], type = 1, alpha = 1)
# add three colors
mix.color(colvec[1:3], type = 1, alpha = 1)
# return type = 2
# just one color
mix.color(colvec[1], type = 2, alpha = 1)
# add two colors
mix.color(colvec[1:2], type = 2, alpha = 1)
# add three colors
mix.color(colvec[1:3], type = 2, alpha = 1)
# opacity or alpha 0.5
# just one color
mix.color(colvec[1], type = 1, alpha = 0.5)
# add two colors
mix.color(colvec[1:2], type = 1, alpha = 0.5)
# add three colors
mix.color(colvec[1:3], type = 1, alpha = 0.5)
# add all colors
mix.color(colvec, type = 1, alpha = 0.5)
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