factor 레벨

 

#install.packages("ggplot2")
library(ggplot2)
View(diamonds)
str(diamonds)

gender = c("m", "f", "f", "m", "f","f")
gender
gender_factor = factor(gender)
gender_factor

gender_factor2 = factor(gender, levels=c("m", "f"), labels=c("man", "female"))
gender_factor2
str(gender_factor2)