CDF stat_ecdf

CDF stat_ecdf

---

누적 밀도 함수를 R의 ggplot2 페키지를 이용해서 생성한다.

mydf = data.frame(
   a = rnorm(100, 0, 1),
   b = rnorm(100, 2, 1),
   c = rnorm(100, -2, 0.5)
)

mydf_m = melt(mydf)

p0 = ggplot(mydf_m, aes(x = value)) + 
   stat_ecdf(aes(group = variable, colour = variable)) 
print(p0)