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Unformatted text preview: (c) Suppose that you had to estimate f X ( ). How would you construct your estimator? What problems would arise if X t is nonstationary? 2. Give the definition of a periodic function and its period. For the trigonometric function A sin x carefully define: its period, angular frequency, amplitude, and phase. 3. Write down a Fourier series representation of the function f(x) which has period p. Please describe the influence of each of the first four terms and intuitively explain why your representation defines a function with period p....
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This note was uploaded on 12/26/2011 for the course ECON 245b taught by Professor Staff during the Fall '08 term at UCSB.
 Fall '08
 Staff
 Economics

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