CODEWITHSUNDEEP
rggplot2
Ahdee
Ahdee

Reputation: 4949

ggplot geom_point plot two categorical variables and fill in missing

Hi suppose I have the following dataframe and want to generate the plot below. I can plot this simply, however, for the missing value: s2,b1 is there a way I can add a circle with a different color? basically I want to fill in a grey point for anywhere in the plot that does not have a black. If there say 5 samples this can get complicated fast.

temp = data.frame ( sample=c("s1","s1","s2"), drug=c("a","b","a"))
ggplot(data=temp, aes(x=sample, y= factor ( drug) ) )+ 
    geom_point(size=20)

enter image description here

Upvotes: 2

Views: 2012

Answers (1)

markus
markus

Reputation: 26343

You could try table

ggplot(data=as.data.frame(table(temp)), aes(x=sample, y= factor ( drug) ) )+ 
  geom_point(aes(color=as.factor(Freq)), size = 20) +
  scale_color_manual(values = c("grey70", "black"))

enter image description here

Upvotes: 2

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