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Interpolating matrices of different sizes to the same size

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Ase U
Ase U 2018-8-15
评论： Pieter Hamming 2018-8-15
Hello,
i have two signals and i want to equalize sizes of my signals because i try to find the time lag in between. Size of first signal is [4001 1], second is [1 180]. But i don't want to just remove some elements from first signal. It should be have almost same curve like in this photo. I think that i need something about interpolation and i tried this code but it show me just same value always, not like interpolation.
targetSize = [1 180];
signal_new = imresize(signal, targetSize);
Any idea? I am very appreciated for your answers, thank you!
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Ase U
Ase U 2018-8-15
编辑：Ase U 2018-8-15
thank you Pieter. But i don't get it actually. My time is not like this "18-Dec-2015 08:03:05". They are just numbers. It is Timetable?
Pieter Hamming
Pieter Hamming 2018-8-15
Others have given alternatives such as interp1, but if you want to use timetable, can you give me an example of your data?

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dpb
dpb 2018-8-15
See
doc resample
in Signal Processing TB

更多回答（1 个）

Anthony Barone
Anthony Barone 2018-8-15
interp1 will do what you want. I find that using it with the 'pchip' flag is particularly useful.

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