map2color {GeneTonic} | R Documentation |
Maps numeric continuous values to values in a color palette
map2color(x, pal, limits = NULL)
x |
A character vector of numeric values (e.g. log2FoldChange values) to be converted to a vector of colors |
pal |
A vector of characters specifying the definition of colors for the
palette, e.g. obtained via |
limits |
A vector containing the limits of the values to be mapped. If
not specified, defaults to the range of values in the |
A vector of colors, each corresponding to an element in the original vector
a <- 1:9 pal <- RColorBrewer::brewer.pal(9, "Set1") map2color(a, pal) plot(a, col = map2color(a, pal), pch = 20, cex = 4) b <- 1:50 pal2 <- grDevices::colorRampPalette( RColorBrewer::brewer.pal(name = "RdYlBu", 11) )(50) plot(b, col = map2color(b, pal2), pch = 20, cex = 3)