easyFFT

easyFFT Easy-to-use Fast Fourier Transform

Conveniently returns the frequency vector along with the FFT.

Input Arguments
- SIG : Input array, signal in time domain, equidistant sampling
- n : Transform length
- dim : Dimension to operate along
- samplerate : Samplig rate of X in Hz

Output Arguments
- Y : Frequency domain representation (fftshift'ed format)
- f : Frequency vector along dim

Usage Example
>> [Y,f] = easyFFT( X, 2^20, 1, 1/dt );