org.apache.poi.hssf.record.formula.functions
Class Sumproduct
java.lang.Object
org.apache.poi.hssf.record.formula.functions.Sumproduct
- All Implemented Interfaces:
- Function
public final class Sumproduct
- extends java.lang.Object
- implements Function
Implementation for the Excel function SUMPRODUCT
Syntax :
SUMPRODUCT ( array1[, array2[, array3[, ...]]])
array1, ... arrayN | typically area references,
possibly cell references or scalar values |
Let An(i,j) represent the element in the ith row jth column
of the nth array
Assuming each array has the same dimensions (W, H), the result is defined as:
SUMPRODUCT = Σi: 1..H
( Σj: 1..W
( Πn: 1..N
An(i,j)
)
)
- Author:
- Josh Micich
Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Sumproduct
public Sumproduct()
evaluate
public ValueEval evaluate(ValueEval[] args,
int srcCellRow,
int srcCellCol)
- Specified by:
evaluate
in interface Function
- Parameters:
args
- the evaluated function arguments. Empty values are represented with
BlankEval
or MissingArgEval
, never null
.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
, 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
.