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selftitled85
12/07/07, 01:52 PM
I dont know if anyone here uses SAS but I am having a little problem forecasting using the proc arima procedure. So I did all the forecasts with 3 different models and I am trying to find out the mean squared error and supposedly SAS has a way of doing it itself and I thought it looks like this:
proc uss;
where date > '1mar03'd;
var z:
with z being the difference between the forecast and the actual data. Now when I put this in SAS says there is no such thing as proc uss. Anyone know what the correct code is?