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This example shows the use of the %PDL macro for polynomial distributed lag models. Simulated data is generated so that Y is a linear function of six lags of X, with the lag coefficients following a ...
Piotr Pawlowski, On the Zeros of a Polynomial and Its Derivatives, Transactions of the American Mathematical Society, Vol. 350, No. 11 (Nov., 1998), pp. 4461-4472 ...