Documentation

NonPeriodic
in package

Table of Contents

Constants

DEFAULT_GUESS  = 0.1
FINANCIAL_MAX_ITERATIONS  = 128
FINANCIAL_PRECISION  = 1.0E-8

Methods

presentValue()  : float|string
XNPV.
rate()  : float|string
XIRR.
bothNegAndPos()  : bool
validateXnpv()  : void
xirrBisection()  : string|float
xirrPart1()  : string
xirrPart2()  : string
xirrPart3()  : float|string
xnpvOrdered()  : float|string

Constants

FINANCIAL_MAX_ITERATIONS

public mixed FINANCIAL_MAX_ITERATIONS = 128

FINANCIAL_PRECISION

public mixed FINANCIAL_PRECISION = 1.0E-8

Methods

presentValue()

XNPV.

public static presentValue(array<string|int, mixed>|float $rate, array<string|int, float> $values, array<string|int, mixed> $dates) : float|string

Returns the net present value for a schedule of cash flows that is not necessarily periodic. To calculate the net present value for a series of cash flows that is periodic, use the NPV function.

Excel Function: =XNPV(rate,values,dates)

Parameters
$rate : array<string|int, mixed>|float

the discount rate to apply to the cash flows

$values : array<string|int, float>

A series of cash flows that corresponds to a schedule of payments in dates. The first payment is optional and corresponds to a cost or payment that occurs at the beginning of the investment. If the first value is a cost or payment, it must be a negative value. All succeeding payments are discounted based on a 365-day year. The series of values must contain at least one positive value and one negative value.

$dates : array<string|int, mixed>

A schedule of payment dates that corresponds to the cash flow payments. The first payment date indicates the beginning of the schedule of payments. All other dates must be later than this date, but they may occur in any order.

Return values
float|string

rate()

XIRR.

public static rate(array<string|int, float> $values, array<string|int, mixed> $dates[, mixed $guess = self::DEFAULT_GUESS ]) : float|string

Returns the internal rate of return for a schedule of cash flows that is not necessarily periodic.

Excel Function: =XIRR(values,dates,guess)

Parameters
$values : array<string|int, float>

A series of cash flow payments The series of values must contain at least one positive value & one negative value

$dates : array<string|int, mixed>

A series of payment dates The first payment date indicates the beginning of the schedule of payments All other dates must be later than this date, but they may occur in any order

$guess : mixed = self::DEFAULT_GUESS

An optional guess at the expected answer

Return values
float|string

bothNegAndPos()

private static bothNegAndPos(bool $neg, bool $pos) : bool
Parameters
$neg : bool
$pos : bool
Return values
bool

validateXnpv()

private static validateXnpv(mixed $rate, array<string|int, mixed> $values, array<string|int, mixed> $dates) : void
Parameters
$rate : mixed
$values : array<string|int, mixed>
$dates : array<string|int, mixed>

xirrBisection()

private static xirrBisection(array<string|int, mixed> $values, array<string|int, mixed> $dates, float $x1, float $x2) : string|float
Parameters
$values : array<string|int, mixed>
$dates : array<string|int, mixed>
$x1 : float
$x2 : float
Return values
string|float

xirrPart1()

private static xirrPart1(mixed &$values, mixed &$dates) : string
Parameters
$values : mixed
$dates : mixed
Return values
string

xirrPart2()

private static xirrPart2(array<string|int, mixed> &$values) : string
Parameters
$values : array<string|int, mixed>
Return values
string

xirrPart3()

private static xirrPart3(array<string|int, mixed> $values, array<string|int, mixed> $dates, float $x1, float $x2) : float|string
Parameters
$values : array<string|int, mixed>
$dates : array<string|int, mixed>
$x1 : float
$x2 : float
Return values
float|string

xnpvOrdered()

private static xnpvOrdered(mixed $rate, mixed $values, mixed $dates[, bool $ordered = true ][, bool $capAtNegative1 = false ]) : float|string
Parameters
$rate : mixed
$values : mixed
$dates : mixed
$ordered : bool = true
$capAtNegative1 : bool = false
Return values
float|string 

        

        
    




    

    

                                

                

                                
    

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