profile.py 文件源码

def _voigt(x, *parameters):
    """
    Evaluate a Voigt profile at x, given the profile parameters.

    :param x:
        The x-values to evaluate the Voigt profile at.

    :param parameters:
        The position, fwhm, amplitude, and shape of the Voigt profile.
    """
    try:
        n = len(x)
    except TypeError:
        n = 1

    position, fwhm, amplitude, shape = parameters

    profile = 1 / wofz(np.zeros((n)) + 1j * np.sqrt(np.log(2.0)) * shape).real
    profile *= amplitude * wofz(2*np.sqrt(np.log(2.0)) * (x - position)/fwhm \
        + 1j * np.sqrt(np.log(2.0))*shape).real
    return profile