objref ps
ps = new PlotShape(0)
ps.size(-328.143,241.006,-386.997,282.856)
ps.variable("delta_egaba_cldifus")
ps.view(-328.143, -386.997, 569.149, 669.853, 344, 106, 214.2, 253)
fast_flush_list.append(ps)
// all lengths are plotted 1*actual size
forall ps.len_scale(1)
ps.exec_menu("Show Diam")
ps.exec_menu("Shape Plot")
// to change the variable scale 
ps.scale(0,18)