pastas.rfunc.Spline.get_tmax
============================

.. py:method:: pastas.rfunc.Spline.get_tmax(p: pastas.typing.ArrayLike, cutoff: float | None = None) -> float

   
   Method to get the response time for a certain cutoff.

   :param p: array_like object with the values as floats representing the model
             parameters.
   :type p: array_like
   :param cutoff: proportion after which the step function is cut off. default is 0.999.
   :type cutoff: float, optional

   :returns: **tmax** -- Number of days when 99.9% of the response has effectuated, when the
             cutoff is chosen at 0.999.
   :rtype: float















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