The package's chart palette

Eight categorical colours in a fixed order, checked for colour-vision deficiency separation between neighbours, plus the neutral inks used for text, axes and gridlines. Every plot() method in the package uses them, so figures read as one system; they are exported so your own figures can match.

Usage

mm_palette(n = 8L, role = c("categorical", "ink"))

Arguments

n

Number of categorical colours, at most 8. Colours are always taken from the front of the list, never cycled.

role

Either "categorical" (the default) or "ink" for the neutral surface, text, axis and grid colours.

Value

A named character vector of hex colours.

Details

Assign the colours to series in order, and keep the assignment fixed to the series rather than to its rank. Three of them (aqua, yellow, magenta) have less than 3:1 contrast against a white background, so a figure using them should carry a legend or direct labels. Past eight series, fold the smallest into "Other" or use small multiples rather than inventing more colours.

Examples

mm_palette(3)
#>      blue    orange      aqua 
#> "#2a78d6" "#eb6834" "#1baf7a" 
mm_palette(role = "ink")
#>   surface   primary secondary     muted      grid      axis 
#> "#fcfcfb" "#0b0b0b" "#52514e" "#898781" "#e1e0d9" "#c3c2b7" 

w <- rbind(geometric = adstock_weights(10, 0.6),
           delayed = adstock_weights_delayed(10, 0.6, peak = 2))
matplot(0:9, t(w), type = "l", lty = 1, lwd = 2, col = mm_palette(2),
        xlab = "Lag", ylab = "Weight")
legend("topright", rownames(w), col = mm_palette(2), lwd = 2, bty = "n")