Fourier Analysis in ROOT

Is it possible to get the frequency out of diagram via a Fourier Transformation in ROOT? If yes, how?
thanks, Jonas


you can use the FFT classes in ROOT based on the FFTW package, available from ROOT v 5.12

See the tutorial FFT.C in $ROOTSYS/tutorials

To use it you need also to install first the fftw package
(from and re-configure root with options

–with-fftw3-incdir --with-fftw3-libdir

Best Regards