scale_color_manual(values)
scale_fill_discrete change color
scale color brewer
scale color manual not working
scale color manual legend
ggplot fill color based on value
ggplot colorscale color manual continuous

You may want to manually select colors based on the color scales in the viridis package, as described in Recipe 12.4. You can do so by calling viridis() andSource: R/scale-manual.r , R/zxx.r You can set color and fill aesthetics at the same time ggplot( mtcars, aes(mpg, wt, colour = factor(cyl), The function scale_discrete_manual() is a generic scale that can work with any aesthetic or set of aesthetics provided via the aesthetics argument. Color 10.3 Discrete colour scales | ggplot2. or if you have your own preferred colours, you can use scale_fill_manual() to set the colours manually. Create your own discrete scale. p <- qplot(mpg, wt, data = mtcars, colour = factor(cyl)) p + scale_colour_manual(values = c("red","blue", "green")) p + In this R tutorial, you will learn how to : change colors by groups (automatically and manually); use RColorBrewer and Wes Anderson color palettes; use gradient 11.3 Discrete colour scales · 11.3.1 Brewer scales · 11.3.2 Hue and grey scales · 11.3.3 Paletteer scales · 11.3.4 Manual scales · 11.3.5 Limits, breaks, and labels.