Statistical inference for function-on-function linear regression
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Function-on-function linear regression is important for understanding the relationship between the response and the predictor that are both functions. In this article, we propose a reproducing kernel Hilbert space approach to function-on-function linear regressionvia the penalised least square, regularized by the thin-plate spline smoothness penalty. The minimax optimal convergence rate of our estimator of the coefficient function is studied. We derive the Bahadur representation, which allows us to propose statistical inference methods using bootstrap and the convergence of Banach-valued random variables in the sup-norm. We illustrate our method and verify our theoretical results via simulated data experiments and a real data example.
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