[S] How do I invoke the second degree lag operator? y(t) + .6y(t-2)

Wed, 11 Nov 1998 01:53:20 EST

I want to simulate

Y(t) +.6Y(t-2) = Z(t) + 1.2Z(t-1)....such that the left hand side is

(1-B squared)Y(t)

where Y(t) is Y with subscript t and

B squared means I'm taking the second lag....

I've scoured the help manual, the V&R book and the S+ book for this command,
i.e. second lag. Thanks.

Susan M. Mangiero
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