new_scale | R Documentation |
Creates a new scale "slot". Geoms added to a plot after this function will use a new scale definition.
new_scale(new_aes) new_scale_fill() new_scale_color() new_scale_colour()
new_aes |
A string with the name of the aesthetic for which a new scale will be created. |
new_scale_color()
, new_scale_colour()
and new_scale_fill()
are just
aliases to new_scale("color")
, etc...
library(ggplot2) # Equivalent to melt(volcano), but we don't want to depend on reshape2 topography <- expand.grid(x = 1:nrow(volcano), y = 1:ncol(volcano)) topography$z <- c(volcano) # point measurements of something at a few locations measurements <- data.frame(x = runif(30, 1, 80), y = runif(30, 1, 60), thing = rnorm(30)) ggplot(mapping = aes(x, y)) + geom_contour(data = topography, aes(z = z, color = stat(level))) + # Color scale for topography scale_color_viridis_c(option = "D") + # geoms below will use another color scale new_scale_color() + geom_point(data = measurements, size = 3, aes(color = thing)) + # Color scale applied to geoms added after new_scale_color() scale_color_viridis_c(option = "A")
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