color by group in ggplot
On May 3, 2013, at 1:37 PM, Ye Lin wrote:
Hey, I have a dataset like this: ID Var1 Var2 Group A1 1 1 BB A2 1 2 AA B1 2 1 CC B2 1 3 DD C1 1 2 EE I would like to plot the points of Var1 and Var2, use "ID" as X-axis, but color the points by "Group". I can only manage to color the points by "ID" after transform the dataset to "tall" using "reshape" package.
If I were given the task of designing a plotting system that would "decide" what to do with a categorical "x-axis" request, it would probably deliver a barplot. My guess is that you do not want that. But what do you mean by a "point" whose x-value is "A1"?
David Winsemius Alameda, CA, USA