darkColors {oligo} | R Documentation |
Create set of colors, interpolating through a set of preferred colors.
darkColors(n) seqColors(n) seqColors2(n) divColors(n)
n |
integer determining number of colors to be generated |
darkColors
is based on the Dark2 palette in RColorBrewer, therefore
useful to describe qualitative features of the data.
seqColors
is based on Blues and generates a gradient of blues, therefore
useful to describe quantitative features of the data. seqColors2
behaves similarly, but it is based on OrRd (white-orange-red).
divColors
is based on the RdBu pallete in RColorBrewer, therefore
useful to describe quantitative features ranging on two extremes.
x <- 1:10 y <- 1:10 cols1 <- darkColors(10) cols2 <- seqColors(10) cols3 <- divColors(10) cols4 <- seqColors2(10) plot(x, y, col=cols1, xlim=c(1, 13), pch=19, cex=3) points(x+1, y, col=cols2, pch=19, cex=3) points(x+2, y, col=cols3, pch=19, cex=3) points(x+3, y, col=cols4, pch=19, cex=3) abline(0, 1, lty=2) abline(-1, 1, lty=2) abline(-2, 1, lty=2) abline(-3, 1, lty=2)