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API Reference for EPL (ApamaDoc) 10.3.1.5
SUMMARY: IMPORT | CONSTANT | MEMBER | ACTION
DETAIL: IMPORT | CONSTANT | MEMBER | ACTION
com.apama.aggregates
Aggregate count
(TYPE arg)
integer
Parameters:
arg
- Nothing, a boolean predicate, or a float or decimal (deprecated).
Return the number of items in the window, optionally with modifications.
If the window is empty returns 0.
With no argument: return the number of items in the window.
With a boolean argument: count the number of items for which the predicate is true.
With a float or decimal argument: count the number of items where the argument is not
NaN
. This mode is deprecated in favor of
count(not arg.isNaN())
.
FRAMES
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Overview
Package
Deprecated
Help
API Reference for EPL (ApamaDoc) 10.3.1.5
SUMMARY: IMPORT | CONSTANT | MEMBER | ACTION
DETAIL: IMPORT | CONSTANT | MEMBER | ACTION