Class Count
java.lang.Object
org.apache.poi.ss.formula.functions.Count
- All Implemented Interfaces:
Function
Counts the number of cells that contain numeric data within
the list of arguments.
Excel Syntax
COUNT(value1,value2,...)
Value1, value2, ... are 1 to 30 arguments representing the values or ranges to be counted.
TODO: Check this properly matches excel on edge cases
like formula cells, error cells etc
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Constructor Summary
Constructors -
Method Summary
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Constructor Details
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Count
public Count()
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Method Details
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evaluate
- Specified by:
evaluatein interfaceFunction- Parameters:
args- the evaluated function arguments. Empty values are represented withBlankEvalorMissingArgEval, nevernull.srcCellRow- row index of the cell containing the formula under evaluationsrcCellCol- column index of the cell containing the formula under evaluation- Returns:
- The evaluated result, possibly an
ErrorEval, nevernull. Note - Excel uses the error code #NUM! instead of IEEE NaN, so when numeric functions evaluate toDouble.NaNbe sure to translate the result toErrorEval.NUM_ERROR.
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subtotalInstance
Create an instance of Count to use inSubtotalIf there are other subtotals within argument refs (or nested subtotals), these nested subtotals are ignored to avoid double counting.
- See Also:
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