Description
An expression that takes values from one or more fields and returns the average of them.
Example
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<expression name="Average\_Column" class="org.jfree.report.function.AverageExpression"> <properties> <property name="field\[0\]">Jan\_Column</property> <property name="field\[1\]">Feb\_Column</property> <property name="field\[2\]">Mar\_Column</property> </properties> </expression> |