def _create_morlet(options, s_freq):
    """Create morlet wavelets, with scipy.signal doing the actual computation.

    Parameters
    ----------
    foi : ndarray or list or tuple
        vector with frequency of interest
    s_freq : int or float
        sampling frequency of the data
    options : dict
        with 'M_in_s' (duration of the wavelet in seconds) and 'w' (Omega0)

    Returns
    -------
    ndarray
        nFreq X nSamples matrix containing the complex Morlet wavelets.

    """
    wavelets = []
    foi = options.pop('foi')
    for f in foi:
        wavelets.append(morlet(f, s_freq, **options))

    return wavelets
Create morlet wavelets, with scipy.signal doing the actual computation.

    Parameters
    ----------
    foi : ndarray or list or tuple
        vector with frequency of interest
    s_freq : int or float
        sampling frequency of the data
    options : dict
        with 'M_in_s' (duration of the wavelet in seconds) and 'w' (Omega0)

    Returns
    -------
    ndarray
        nFreq X nSamples matrix containing the complex Morlet wavelets.