Highlight subset of data in a plot using ggplot2 

#rprogramming #datavisualization #ggplot2 #highlight #subset
In this video, I have demonstrated the use of function subset() inside geom to get a subset of the data highlighted in te plot. Rearrangement of the layers also has been discussed with adjustments to alpha to make the highlighting effective.
the code
library(palmerpenguins)
head(penguins)
summary(penguins)
library(ggplot2)
ggplot(penguins,aes(flipper_length_mm,body_mass_g,color=species))+
geom_point(data=subset(penguins,island=="Biscoe"), color="red",size=3)+
geom_point()+
theme_classic()
subset(penguins,island=="Biscoe")
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