Class Sumproduct

java.lang.Object
org.apache.poi.ss.formula.functions.Sumproduct
All Implemented Interfaces:
Function

public final class Sumproduct extends 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
  • Constructor Details

    • Sumproduct

      public Sumproduct()
  • Method Details

    • 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 evaluation
      srcCellCol - 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.