Hi Peter,
When you talk about the code, do you mean the syntax in the expression editor?
The parameters are documented here:
http://support.sas.com/documentation/cdl/en/vaug/68648/HTML/default/viewer.htm#n1lxnqfip132can1hdzuerib7i76.htm
This is the 7.3 doc, but I don't believe there is any difference from VA 7.1 if you are using 7.1.
The interval operators can be either _Inferred_, _ByMonth_, _ByQuarter_, or _ByYear_. There is not a way to specify a weekly interval.
My understanding is that the LASR data server is limited in what periodic intervals it can process, in the current implementation. This could possibly be expanded in a future release.
Thanks,
Sam
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