Class Npv
java.lang.Object
org.apache.poi.ss.formula.functions.Npv
- All Implemented Interfaces:
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.
- Author:
- SPetrakovsky, Marcel May
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Constructor Summary
Constructors -
Method Summary
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Constructor Details
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Npv
public Npv()
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Method Details
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evaluate
- 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
.
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