forum.alglib.net

Hello All!
I'm new user od alglib. I want to use FFT from alglib in my delphi 7 project.
Which modules should i include to my project ?

if some can share an working example of using FFT i'll be very happy.
Thanks in advance.

--
best regards
Suleiman

Also can some help me to get imagine and real part of FFT for one dimensional data series F(T) where T - time.
Thanks

There is no Delphi examples for FFT yet.

As for dependencies, you can look at "uses Math, Sysutils, Ap, ftbase;" at the beginning of fft.pas It references all units it needs - ap.pas, ftbase.pas and two system units from Delphi standard library.

As for your task, you can use FFTR1D.

Thanks for your answer ! But how get complex and real part saparately . ?
cheers

FFTR1D returns them in one array, real part in arr[idx].x, imaginary part in arr[idx].y If you want to separate them into two distinct arrays, you can make it yourself. Just one pass through array - and that's all.

thankyou very much !