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Calculation to find max value in field

Redbeard
in The Left Brain

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I am trying to come up with a calculation that will display the highest number used in a field for all records, regardless if they are in the found set or not.

set up a self-join relation

x=max(selfjoin::y).

The self-join should be based on a calculation thatis true for all records, i.e. a calc z=1.

so the relation is myfile, z <-> myfile, z.

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https://fmforums.com/topic/15260-calculation-to-find-max-value-in-field/
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