I'm trying to use Origin to do a Fast Fourier Transform, but my data are not evenly spaced. When I use the interpolation function, it does not result in data that are evenly spaced. How can I use the interpolation function to produce an evenly spaced dataset, so that I can process the data with a FFT?
It's possible that the interpolation is not working because when you select interpolate you are only interpolating the Y data. You might want to try to interpolating both X and Y data.
To interpolate the X data:
1.Select Analysis -> Interpolate. 2. With the dialog open select the Y column for X Range and select the X column for Y Range.
Interpolation for FFT
Posted - 11/13/2017 : 1:50:49 PM
