MATLAB: Marking points

datamininggraphs

is it possible to draw graps for teo sets of data using plot command,in y axis the datas are there corresponding to that the points should be marked
datas
A=[12 34 90 45]
B=[0 8 9 36]
please help

Best Answer

A=[12 34 90 45];
B=[0 8 9 36];
C = [ 1 2 3 4];
plot(A,B,'b')
hold on
plot(A,C,'r')