Significantly different between two nonlinear functions
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Is there any way to find out significantly different between two nonlinear functions?
I have these 2 models for the best fit:
y1 = a1/(b1+x) (blue) and y2 = a2/(b2+x) (red)
Mayby I can log the functions and make it linear and check if the e.g angle are > 0?
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/347724/image.jpeg)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/347814/image.jpeg)
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回答(1 个)
Alan Stevens
2020-8-18
Or you could linearise by simply inverting and plotting 1/y1 against x1, and 1/y2 against x2.
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Alan Stevens
2020-8-18
Find the errors on the slopes and intercepts. Use them to estimate if the lines are the same to within the errors or not.
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