pastas.rfunc.FourParam.gain
===========================

.. py:method:: pastas.rfunc.FourParam.gain(p: pastas.typing.ArrayLike) -> float

   
   Return the gain of the FourParam response function.

   :param p: Response function parameters [A, n, a, b].
   :type p: array_like

   :returns: **gain** -- Gain of the response function (parameter A).
   :rtype: float















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