Regression with functions handles-Help please!

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SB 2012-10-26

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/51964-regression-with-functions-handles-help-please

Say that

y = a1*f1(x)+ a2* f2(x) + ...+ an*fn(x)

where x and y are column vectors, f1(x),....,fn(x) are function handles at x. How would you solve for the coefficient matrix A using least squares regression?

Here's what I have so far:

function A= MyRegressor(x2,y2,fhs)

for i = 1:numel(fhs)

f = fhs{i}(x2(i));

end

A=f/y2(i)

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回答（1 个）

Sean de Wolski 2012-10-26

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/51964-regression-with-functions-handles-help-please#answer_63341

在 MATLAB Online 中打开

doc lsqnonlin

Would probably be my first choice.

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SB 2012-10-26

Thanks, I was trying to solve it using just a A=x\y format, however. Is there any way to edit my code to do that?

SB 2012-10-26

Also, I don't think i'm allowed to use that function.

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