Thanks for the reply, this is actually not a homework question but a question on a past paper. I am doing exam prep, is this allowed? -- View this message in context: http://r.789695.n4.nabble.com/Customise-a-symbol-in-a-scatterplot-with-for-loop-tp4687386p4687389.html Sent from the R help mailing list archive at Nabble.com.