It is used to coerce TRUE/FALSE values to 1/0. The FREQUENCY(..)0 will
return an array of TRUE and FALSE values, the first - coerces this to an
array of -1/0, the second negates it to an array of 1/0, and SUM then just
adds them up.

--
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HTH

Bob


(there's no email, no snail mail, but somewhere should be gmail in my addy)



wrote in message
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That works - thanks!!

By the way, what does the "--" before the frequency mean?

Thanks!