alathrop
7/15/2016 - 7:33 PM

ggplot ellipse around clusters

From http://docs.ggplot2.org/current/stat_ellipse.html

ellipse-qr.R
content_copyfile_download
ggplot(faithful, aes(waiting, eruptions)) +
  geom_point() +
  stat_ellipse()



ggplot(faithful, aes(waiting, eruptions, color = eruptions > 3)) +
  geom_point() +
  stat_ellipse()



ggplot(faithful, aes(waiting, eruptions, color = eruptions > 3)) +
  geom_point() +
  stat_ellipse(type = "norm", linetype = 2) +
  stat_ellipse(type = "t")



ggplot(faithful, aes(waiting, eruptions, color = eruptions > 3)) +
  geom_point() +
  stat_ellipse(type = "norm", linetype = 2) +
  stat_ellipse(type = "euclid", level = 3) +
  coord_fixed()



ggplot(faithful, aes(waiting, eruptions, fill = eruptions > 3)) +
  stat_ellipse(geom = "polygon")