plot(1:4, cex=8, pch=20, col = incidence_pal1(4),
main = "palette: incidence_pal1")
plot(1:100, cex=8, pch=20, col = incidence_pal1(100),
main ="palette: incidence_pal1")
plot(1:100, cex=8, pch=20, col = incidence_pal1_light(100),
main="palette: incidence_pal1_light")
plot(1:100, cex=8, pch=20, col = incidence_pal1_dark(100),
main="palette: incidence_pal1_dark")
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