CODEWITHSUNDEEP
rggplot2
Mizzle
Mizzle

Reputation: 757

How to change point size for a specific color in ggplot2 scatter plot

My data is below

library(ggplot2)
X <- c(1,2,3,4,5,6,7,8,9,10)
Y <- c(1,2,3,4,5,6,7,8,9,10)
color <- c("red","blue","yellow","red","blue","yellow","red","blue","yellow","red")
data <- as.data.frame(cbind(as.numeric(X),as.numeric(Y),color))
ggplot(data, aes(x=V1, y=V2, color=color)) + geom_point() +  scale_color_manual(values = c("#0072B2","#D55E00", "yellow"))

I would like to draw a scatter plot by ggplot2. I would like to see the dots whose color are red are much smaller than the other dots whose color are not red. How can I do it?

Upvotes: 1

Views: 451

Answers (1)

MarBlo
MarBlo

Reputation: 4524

use the same aes for size and specifiy size manually as you did for color

ggplot(data, aes(x=V1, y=V2, color=color, size = color)) + 
  geom_point() +  
  scale_color_manual(values = c("#0072B2","#D55E00", "yellow"))+
  scale_size_manual(values = c(4, 1, 4))

Upvotes: 2

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