How to recycle colours in a colorbrewer palette using line symbols
问题 I'm using ggplot2 to create quite a few facet_wrap ped geom_line plot. Although each plot only has a maximum of eight lines, when taken together, there are more like twenty categories to show on the legend. In a similar vein to this: Recommend a scale colour for 13 or more categories and this: In R,how do I change the color value of just one value in ggplot2's scale_fill_brewer? I'd like to artificially up the number of colours I can show using colorbrewer's high-contrast colour sets. An