Problem Using Interp1 Within For Loop

Question

Jonathan Pinko 2020-4-30

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/522105-problem-using-interp1-within-for-loop

评论： Ameer Hamza 2020-5-1

采纳的回答： Ameer Hamza

I have the following code:

xq = dataset(1:116,1);

Fevq = zeros(length(xq),length(Fes));

for l=1:numel(Fes);

Fevq(l)=interp1(Fo(:,l),DeltaFe56(:,l),xq);

end

Fes is a 2x1 matrix, and both Fo and DeltaFe56 are both 126x2 matrices. I would like to interpolate the values of xq onto the (Fo,DeltaFe56) curves both when l=1, and when l=2. When I try to do this, however, I get the error message, "Unable to perform assignment because the left and right sides have a different number of elements".

I would like both sides to have the size of 116x2, and I am not sure why this isn't the case. Can anybody explain why this isn't working?

Thanks,

Jonathan

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Answer 1

Ameer Hamza 2020-5-1

0
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/522105-problem-using-interp1-within-for-loop#answer_429492

在 MATLAB Online 中打开

Try this

xq = dataset(1:116,1);
Fevq = zeros(length(xq),length(Fes));
for l=1:numel(Fes);
    Fevq(:,l)=interp1(Fo(:,l),DeltaFe56(:,l),xq); % use Fevq(:,l) to indicate that you want to assign value to a column
end