Piecewise evaluation of mean absolute error an plotting

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Joaquim 2017-8-4

评论： Matt J 2017-8-4

Hello everybody,

I have two vectors, A and B. A represents the reference and B a noisy reconstruction.

I want to calculate the mean absolute error, MAE, in groups in a range of 20 units.

Then, I want to plot(A, MAE) using this piecewise evaluation.

How can I do this?

Joaquim

Matt J 2017-8-4

编辑：Matt J 2017-8-4

Something like the following, I suppose,

   MAE =  conv(abs(A(:)-B(:)),  ones(20,1)/20  ,'valid');
   plot(MAE)

Matt J 2017-8-4

They should have different lengths. The number of length=20 sections of A and B is shorter than A and B.

Matt J 2017-8-4

You could try doing conv(...,'same') instead of 'valid'.

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