IGOR WAVES/O wave0 wave1 BEGIN -2 4 -1 1 0 0 1 1 2 4 END X Edit wave0,wave1 X Display wave1 vs wave0 X ModifyGraph rgb(wave1)=(0,0,65535) X ModifyGraph lSize=2 X ModifyGraph manTick(left)={ 0, 0.5, 0, 2 } X SetAxis left -1, 5 X CurveFit poly 3, wave1 /X=wave0 /D