org.apache.poi.ss.formula.functions
Class Subtotal

java.lang.Object
  org.apache.poi.ss.formula.functions.Subtotal

All Implemented Interfaces:

Function

public class Subtotal
extends java.lang.Object
implements Function

Implementation for the Excel function SUBTOTAL

Syntax :
SUBTOTAL ( functionCode, ref1, ref2 ... )

functionCode	(1-11) Selects the underlying aggregate function to be used (see table below)
ref1, ref2 ...	Arguments to be passed to the underlying aggregate function

functionCode	Aggregate Function
1	AVERAGE
2	COUNT
3	COUNTA
4	MAX
5	MIN
6	PRODUCT
7	STDEV
8	STDEVP *
9	SUM
10	VAR *
11	VARP *
101-111	*

* Not implemented in POI yet. Functions 101-111 are the same as functions 1-11 but with the option 'ignore hidden values'.

Author:

Paul Tomlin < pault at bulk sms dot com >

Constructor Summary

Subtotal()

Method Summary

ValueEval

evaluate(ValueEval[] args, int srcRowIndex, int srcColumnIndex)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Subtotal

public Subtotal()

Method Detail

evaluate

public ValueEval evaluate(ValueEval[] args,
                          int srcRowIndex,
                          int srcColumnIndex)

Specified by:

evaluate in interface Function

Parameters:

args - the evaluated function arguments. Empty values are represented with BlankEval or MissingArgEval, never null.

srcRowIndex - row index of the cell containing the formula under evaluation

srcColumnIndex - column index of the cell containing the formula under evaluation

Returns:

The evaluated result, possibly an ErrorEval, never null. Note - Excel uses the error code #NUM! instead of IEEE NaN, so when numeric functions evaluate to Double.NaN be sure to translate the result to ErrorEval.NUM_ERROR.