Written by Tim Cohn
genmissing(X1, XN, rho, N)
genmissing numeric vector of length N, conditioned on the first value (X1) and last value (XN) with the specified lag one autocorrelation in the limit (where N is large) the values are normal with mean 0 and variance 1
value before the gap
value after the gap
the lag one autocorrelation
the length of the sequence including X1 and XN. It is two more than the gap length