Putting arrows on a scatter graph

[Hugo123]

Is there a way to put arrows on a scatter plot indicating "movements" from one point to the next.

So, if my scatter plot consisted of (1,1) (1,4) (4,4) and (4,1) could I connect the points including arrows:

(1,1) to (4,4) and

(4,4) to (4,1)

for example

[GraphGuy]

Here's one way to do it...

data foo;
input x y;
datalines;
1 1
4 4
4 4
4 1
run;

data anno_arrows; set foo;
length function $8;
xsys='2'; ysys='2'; when='a';
if _n_=1 then function='move';
else function='arrow'; style='filled'; angle=30; line=1.8; color='red';
run;

symbol1 value=circle color=blue height=2.0 interpol=none;

proc gplot data=foo anno=anno_arrows;
plot y*x / noframe;
run;