A function does not work with an array as an input argument

Question

Bogdan MP 2021-10-22

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1569713-a-function-does-not-work-with-an-array-as-an-input-argument

评论： Bogdan MP 2021-10-22

采纳的回答： Matt J

I have the following function

MyFun = @(a, x) ( integral(@(k) k .* (1 ./ ( 1 + (a*k - x).^2 )), -1, 1) ./ ...

integral(@(k) 1 ./ ( 1 + (a*k - x).^2 ), -1, 1) );

Which is simply

I have a vector (or an array) of data x. Let's say x = 0 : 1 : 10; When I try to call MyFun(-1, x) I get a mistake ''matrix dimensions must agree''. Could you tell me please, how to fix that?

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Answer 1

Matt J 2021-10-22

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1569713-a-function-does-not-work-with-an-array-as-an-input-argument#answer_814338

在 MATLAB Online 中打开

args={'ArrayValued',1};
MyFun = @(a, x) ( integral(@(k) k .* (1 ./ ( 1 + (a*k - x).^2 )), -1, 1,args{:}) ./ ...
integral(@(k) 1 ./ ( 1 + (a*k - x).^2 ), -1, 1,args{:}) )