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T O P I C R E V I E W
OriginALL	Posted - 04/27/2012 : 2:01:59 PM Origin Ver. and Service Release (Select Help-->About Origin): OriginPro 8 SR2 Operating System:Windows Seven x64 Home Premium Hi all! I've an apparent problem with curve fitting in Origin.After launching "Fit multiple peaks", I obtain the datasheet of FittedCurves. Now, why the "Sum Y" coloumn isn't equal to the sum of Peak1(Y) and Peak2(Y) and Peak3(Y)? How i can obtain this SumY? . Thanks in advanced
2 L A T E S T R E P L I E S (Newest First)
OriginALL	Posted - 04/28/2012 : 10:56:45 AM Very thanks Hideo Fujii for your answer.
Hideo Fujii	Posted - 04/27/2012 : 3:00:35 PM Hi OriginALL, The each peak fit curve, and their sum contain the bias (i.e. offset) term, which must be reported as "y0" in the fit report. So, Once y0 are subtracted from them, summation should match. --Hideo Fujii OriginLab P.S. Your y0 should be around -0.16339 .

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