Class Npv
- java.lang.Object
-
- org.apache.poi.ss.formula.functions.Npv
-
- All Implemented Interfaces:
Function
public final class Npv extends Object implements Function
Calculates the net present value of an investment by using a discount rate and a series of future payments (negative values) and income (positive values). Minimum 2 arguments, first arg is the rate of discount over the length of one period others up to 254 arguments representing the payments and income.
-
-
Constructor Summary
Constructors Constructor Description Npv()
-
-
-
Method Detail
-
evaluate
public ValueEval evaluate(ValueEval[] args, int srcRowIndex, int srcColumnIndex)
- Specified by:
evaluate
in interfaceFunction
- Parameters:
args
- the evaluated function arguments. Empty values are represented withBlankEval
orMissingArgEval
, nevernull
.srcRowIndex
- row index of the cell containing the formula under evaluationsrcColumnIndex
- 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.NaN
be sure to translate the result toErrorEval.NUM_ERROR
.
-
-