Frequency shift.
Parameters : | dic : dict
data : ndarray
dir : {‘rs’ or ‘ls’}
pts : float
sw : bool
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Returns : | ndic : dict
ndata : ndarray
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Notes
This function does not perfrom a Hilbert transfrom when data is complex, NMRPipe’s FSH function appear to. As such the results of the imaginary channel differs from NMRPipe. In addition MAX/MIN value are slightly different than those in NMRPipe.