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→Fields, Variables, and Parameters
Often it is necessary to add a variable to an iReport template. Variables are used to store calculations and totals in an iReport template. They are often used in the Summary Band portion of a report to store sums of numeric fields (e.g. areaSize) or record counts. There are two main ways to add variables to an iReport template.
=====For numeric variables:====
For variables that are numeric (area sizes, number of devices, etc):
# From the '''Report Inspector''', Select the field that you wish to sum or count.
#: [[Image:IReport VariableAdd2.png|center|300px|''Select aggregation function'']]<div align="center">''Choose the type of calculation''</div>
# From the '''Report Inspector''' '''right click''' on the '''Variable''' tree and choose '''Add Variable'''.
#: [[Image:IReport VariableAdd3.png|center|300px|''Add Variable'']]<div align="center">''Add Variable''</div>
