The palette I need includes more than 14 types of colors.
I do some searching on the package RColorBrewer. I find the maximum of colors for all palettes is under 14.
Temporally, I just combine palette 'Paired' and 'Set3' into a 24-type palette and use it manually.
c(
RColorBrewer::brewer.pal(12,'Paired'),
RColorBrewer::brewer.pal(12,'Set3')
)
But there is a new question, the combined palette is not smoothing.
Does anyone dig into this field?