On Sun, Nov 12, 2017 at 07:45:13PM -0800, Dan Hitt wrote: > I have some DFTs that i wish to inspect. (Apparently DFT is a common > acronym, but here i mean Discrete Fourier Transform. And properly > speaking it doesn't make sense to inspect a transform, but only to > inspect transformed data, but i'm speaking colloquially.) > > DFTs are a common artifact in digital signal processing. Lots of > Debian packages are focused on FFTs (Fast Fourier Transforms, a way of > computing DFTs). Nevertheless i couldn't find either a standard file > format to store one, or software specifically for viewing DFTs. > > Of course, lots of software can take data, then transform it, then > display the transform that it created, but i would like something that > can take an already created DFT in some standard format, then display > it. > > TIA for any information or pointers or advice from anybody! :) > > dan >
First things first: there is no special format for FT data. Since mostly you deal with time series/sequential data any format should work. To display that data any plotting program will do. gnuplot, mathplot... If you look for a easy integration into your transformation routines, I suggest numpy/scipy which uses mathplot. -H -- Henning Follmann | hfollm...@itcfollmann.com
