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Data2Dynamics / d2d

a modeling environment tailored to parameter estimation in dynamical systems
https://github.com/Data2Dynamics/d2d
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differences between fixed and constant #107

Closed mikeaalv closed 6 years ago

mikeaalv commented 6 years ago

For aFit in arSetPars, actually, I don't quite understand the differences between fixed and constant. Could you give some cases on where to use them?

JoepVanlier commented 6 years ago

I don't think there's a functional difference. It is more to communicate what the parameter means and to be able to differentiate between parameters you may want to free later.

mikeaalv commented 6 years ago

So, What's the differences between fixed and constant? Is the former means fixed by user and the latter means fixed in its own sence?