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wrapper of brewer.pal function from RColorBrewer.
brewer.pal(n, name)
Number of different colors in the palette, minimum 3, maximum depending on palette.
A palette name from the lists below: Accent 8 Dark2 8 Paired 12 Pastel1 9 Pastel2 8 Set1 9 Set2 8 Set3 12
A vector of colors.
# NOT RUN { { # Plot a colorbar with brewer.pal mypalette<-brewer.pal(7,"Greens") } # }
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