Generate a colour-blind friendly palette for categorical colour encoding

For a given number of categories, identify a suitable palette of colours which are colour-blind friendly. Palettes are derived from http://mkweb.bcgsc.ca/colorblind/palettes.mhtml#page-container

get_cat_palette(n)

Arguments

n

numeric. The number of colours required.

Value

Returns a character with the Hex codes for the colour palette.