FFT

 

        ANALYSE\FFT [/REMOVE]

    FFT computes the  Fourier  Transform  of  R  and  plots  it.   R  and  T
    observations  are  unaffected.  There is no control over the plot units,
    and no associated coordinate system (i.e.  you  cannot  measure  periods
    with  the  cursor). You can edit the Fourier Transform using the cursor.
    Strike key K to mark the beginning of an area to delete, move the cursor
    to  the  end of the area to delete and strike key K again. Then strike E
    to exit, and Fourier components are interpolated  in  module  and  phase
    from the boundaries of deleted areas.

    Non  interactive  editing  is  also  possible  and  can  be  useful  for
    repetitive applications. The syntax is then FFT Start End [/REMOVE]

• FFT /REMOVE