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Questions on the use of Mathematica to construct models for approximating empirical data.

25
votes
3answers
There are many questions on this site about wrong exponential fitting in Mathematica but no one considers this well-known problem as a potential bug. Usually people suggest well-known workarounds … FindMinimum related to exponential fitting. Let us take a simple dataset and try to fit it to the exponential model: data = {{0, 20}, {20, 10}, {40, 5}, {60, 2.5}, {80, 1.25}}; fit1 = FindFit[data, a*Exp[b*x …
asked Jan 27 '16 by Alexey Popkov
15
votes
2answers
I have a black-box multiargument multiparametric function of the type SRD[dataPoint_List,params_List] which accepts experimental data along with the parameters of the model and returns a vector with t …
asked Feb 18 '12 by Alexey Popkov