From: Pearu P. <pe...@ce...> - 2003-05-29 20:47:06
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On Thu, 29 May 2003, Cliff Martin wrote: > This leads me to my second problem. In Matlab there is a function > called fftshift that lets one shift the fft values for more easy > visualization. Numeric doesn't seem to have a function like that > explicitly although I suppose one could use the flip function in the > MatPy module. Has anyone implemented something like the fftshift > function or could you suggest the best way to do this? Thanks for your > help. Oh I'm doing this on a 2D array. scipy.fftpack has fftshift. If you don't care building scipy yourself then the implementation of fftshift can be viewed via CVSview at www.scipy.org, look at the file scipy/Lib/fftpack/helper.py HTH, Pearu |