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?
回答（1 个）
Alan Stevens
2020-8-18
0 个投票
Or you could linearise by simply inverting and plotting 1/y1 against x1, and 1/y2 against x2.
5 个评论
jjohn33
2020-8-18
Alan Stevens
2020-8-18
You could calculate the errors on the fits (see linear regression in Matlab's documentation) and compare them.
jjohn33
2020-8-18
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.
jjohn33
2020-8-18
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