Passing extra arguments to `nlinfit` function

2018 7 19
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更新时间：2020 8 1
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I am in interested in passing extra arguments to nlinfit function in Matlab
beta = nlinfit(X,Y,modelfun,beta0)
and let the modelfun is
function y = modelfun(beta, c, X)
y = beta(1)*x.^(beta2) + c;
My interest is to estimate beta and also to provide c externally. X and Y have their obvious meanings.
Can it be done?

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Star Strider
Star Strider 2018-7-19

2 个投票

Your function must have your parameter vector as the first argument, your independent variable as the second argument, and any added parameters after that.
Try this:
Beta = nlinfit(X,Y,@(beta,X)modelfun(beta, c, X),beta0)
See the documentation on Passing Extra Parameters (link).

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