Description
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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>
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