[R] FW: help with time Series regression please

[tomreilly]

Cathy,

How does this model look?



[(1-B**4)]Y(T) =  20.767                                                                                                
                 +[X1(T)][(1-B**4)][(+ 56.1962)]      :PULSE              7/ 
4               I~P00028test
                 +[X2(T)][(1-B**4)][(+ 74.4301)]      :PULSE              9/ 
4               I~P00036test
                 +[X3(T)][(1-B**4)][(- 59.9872)]      :PULSE              6/ 
3               I~P00023test
                 +[X4(T)][(1-B**4)][(- 27.2187)]      :PULSE              7/ 
1               I~P00025test
                +     [(1-  .435B** 1)]**-1  [A(T)]

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