I have the problem regarding my fitting. I have the data points and using my equation I try to fitting my graph but the fitting not 'touch' the last point. I try to change my constant value but the result still same. So I hope anyone can help me.
Please try to add a constraint in NLFit, forcing the curve to go through the last point, and see if it would lead to a better fit. (NLFit dialog, Code tab, Constraints node)