Hi,
I have a table of data that gives me the amount of product produced for paddocks, and each paddock has a soil and variety attribute. I am trying to work out how to get a query that will give me the production level that is equivalent the top 25% (or 10%) of paddocks produced for each combination of soil and variety.
I suspect that I could do this with some statistical functions, but am not sure - been about 20 years since I did stats - and can't find reference to a std dev function in the manual, but perhaps there is a better way.
Any suggestions - and it is being done in Mapbasic.
Thanks r
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Robert Crossley
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