Dear Allstat,
Thanks to all members who replied to my question. The one true way
is to use missing response values etc ...
I seems so simple. I guess I never had the confidence and/or
ability to really study the form of Sxy/Sxx and see what it is not
telling me as much as what it does tell you.
John Milne
Balance of Payments Section
Central Statistics Office of Ireland
Rathmines
Dublin 6.
Tel : + 353 - 1 - 4984205
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