Say I have something like this:

Col A Col B Col C
A 3 5
A 5 3
A 6 7
B 8 1
B 4 6
C 6 7
C 4 2
E 7 4

Any ideas about a function such that any A would be in plotted in one
graph, any B in another graph, and so on? Is there even any sort of
GRAPH() function??