def eval(self, xx, d=None):
"""Evaluate the capped rbf interpolant at the point xx
:param xx: Point where to evaluate
:return: Value of the capped rbf interpolant at x
"""
return self.model.eval(to_unit_box(xx, self.data))
def deriv(self, xx, d=None):
"""Evaluate the derivative of the rbf interpolant at x
:param x: Data point
:return: Derivative of the rbf interpolant at x
"""
return self.model.deriv(to_unit_box(xx, self.data))
def add_point(self, xx, fx):
"""Add a new function evaluation
:param xx: Point to add
:param fx: The function value of the point to add
"""
if self.nump >= self.fvalues.shape[0]:
self.fvalues.resize(2*self.fvalues.shape[0], 1)
self.fvalues[self.nump] = fx
self.nump += 1
self.needs_update = True
self.model.add_point(to_unit_box(xx, self.data), fx)
