How to set colors in the barplot function in R language?

In R language, you can use the col parameter to set the color of a barplot. Here is the specific method:

1. abridge

barplot(heights, col = "red")

1. make more space

barplot(heights, col = c("red", "green", "blue"))

1. rainbow() – a function that generates a sequence of colors in the order of the colors of a rainbow.
2. generate a color palette based on heat levels
3. generate a list of colors
4. collected
5. create a rainbow

barplot(heights, col = rainbow(7))

1. Create a color palette with smoothly changing colors
2. short for column

myColors <- colorRampPalette(c("red", "white", "blue"))
barplot(heights, col = myColors(length(heights)))

Please choose the appropriate method to set the color of the bar plot according to your needs.