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How can I modify vector length?

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DenisK
DenisK 2018-5-12
评论： DenisK 2018-5-12
I have several vectors to compare, however they all slightly differentiate by length. I know that first numbers of vectors are zeros. Can I cut those number to get vectors of same length? I don't want to pad vectors with zeros, because in this case I wouldn't be able to calculate an error between vectors?
Or may be there is a way to calculate error ratio between two vectors, even if they have different length?
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Jan
Jan 2018-5-12
Please post the data. If the inputs contain NaNs, the result must be NaN also.
DenisK
DenisK 2018-5-12
The data is an mp3 file, so I cannot attache it here. Vectors that I built are result of few convolution methods, that I need to compare (linear, circular, overlap save and overlap add). I took linear convolution result as a reference vector.

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Jan
Jan 2018-5-12
If cropping the zeros solves the problem, crop the zeros:
v = [0,0,1,2,3,4]
v = v(find(v, 1):length(v))

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