Interpolating matrices of different sizes to the same size
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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!
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/193879/image.png)
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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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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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