Fig. 5From: Simultant: simultaneous curve fitting of functions and differential equations using analytical gradient calculationsSimultaneous fits. a Using r as a model parameter does not result in a good overall fit. Even though the fit has \(R^2 = 0.979\), it is clear that there are systematic errors. b Using two detached parameters results in excellent fits. This fit has \(R^2 = 0.997\) which is comparable to the \(R^2 = 0.998\) that can be obtained using completely independent fits (i.e. setting all parameters as data parameters). These plots were generated directly by SimultantBack to article page