diff --git a/dat/lkneeExample.m b/dat/lkneeExample.m
index e69de29..0d55c09 100644
--- a/dat/lkneeExample.m
+++ b/dat/lkneeExample.m
@@ -0,0 +1,17 @@
+% https://www.mathworks.com/help/matlab/ref/double.interp1.html
+
+% we can export the points generated by this code
+% to a .mat file and call it from simulink to plug into
+% a PID controller
+
+% setup vars
+t = [0, 1, 2, 3, 4];
+p = [0, -18, -45, -18, 0];
+
+% generate graph lines
+querypts = 0:1/16:4;
+interpts = interp1(t, p, querypts, 'spline');
+
+% create graph
+figure
+plot(t, p,'o', querypts, interpts, ':.');
\ No newline at end of file