[Babase] ranking clarification needed

Susan Alberts alberts at duke.edu
Sun Sep 2 21:43:15 EDT 2007


> In theory, if you wanted to store a rank for multiple months in the
> RANKS table you could do it just by defining another RNKTYPES row
> and have that be defined as "for the previous N months".  So,
> the _minimum_ granularity is 1 month.  It'd probably be a hassle
> to query the "multiple months" rank types because there's
> no function like rnkdate() to make joins to the rnkdate easy.
>
> So, while it's not done, there's nothing inherent in the design
> that says it couldn't be.
>
Thanks Karl, I think it's safe to say that we don't want to do this  
but it is good to know that we can. We do sometimes want to visualize  
matrices that summarize multiple months. We don't want to assign  
ranks "for the n previous months".


Susan


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