Problem: No parametrized function used

[Erik Uran]

Dear all

Regarding FITYK: if I put several functions, one in place 0 and others one in the place 1,2,3..., and fit the one in the 0, all other functions, when fitted afterwards, give the same info fit values (R^2 etc). However, I fit the function in the place 1, without fitting the function in the place 0, an error occurs if I type info fit in the command box (Error: No parametrized functions are used in the model)

Can you please explain why is this happening?

Kind regards,

Erik