// This macro demonstrates how to use string concatenation to 
// pass  arguments  to commands called using the run() function.

name1 = "Test";
name2 = "Test Image";
name2 = "'"+name2+"'"; // must be single quoted because of space
width = 400;
height = 300;
scale = 150; // 150 pixels/mm
unit = "mm";
angle = 45;
run("New...", "name="+name1+" type=8-bit fill=Ramp width="+width+" height="+height+" slices=1");
run("Rename...", "title="+name2);
run("Set Scale...", "distance="+scale+" known=1 pixel=1 unit="+unit);
run("Arbitrarily...", "angle="+angle+" interpolate");