TREND_LINEAR
TREND_LOGARITHMIC
TREND_EXPONENTIAL
TREND_POWER
TREND_POLYNOMIAL_2
TREND_POLYNOMIAL_3
TREND_POLYNOMIAL_4
TREND_POLYNOMIAL_5
TREND_POLYNOMIAL_6
TREND_BEST_FIT
TREND_BEST_FIT_NO_POLY

No protected methods found

No protected properties found

N/A

No private methods found

$trendTypes
$trendTypePolynomialOrders
$trendCache

N/A

File: vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Shared/Trend/Trend.php
Package: Default
Class hierarchy: \PhpOffice\PhpSpreadsheet\Shared\Trend\Trend

Constants

TREND_LINEAR

TREND_LINEAR = 'Linear'

TREND_LOGARITHMIC

TREND_LOGARITHMIC = 'Logarithmic'

TREND_EXPONENTIAL

TREND_EXPONENTIAL = 'Exponential'

TREND_POWER

TREND_POWER = 'Power'

TREND_POLYNOMIAL_2

TREND_POLYNOMIAL_2 = 'Polynomial_2'

TREND_POLYNOMIAL_3

TREND_POLYNOMIAL_3 = 'Polynomial_3'

TREND_POLYNOMIAL_4

TREND_POLYNOMIAL_4 = 'Polynomial_4'

TREND_POLYNOMIAL_5

TREND_POLYNOMIAL_5 = 'Polynomial_5'

TREND_POLYNOMIAL_6

TREND_POLYNOMIAL_6 = 'Polynomial_6'

TREND_BEST_FIT

TREND_BEST_FIT = 'Bestfit'

TREND_BEST_FIT_NO_POLY

TREND_BEST_FIT_NO_POLY = 'Bestfit_no_Polynomials'

Properties

$trendTypes

$trendTypes : array<mixed,string>

Names of the best-fit Trend analysis methods.

Type

array<mixed,string>

$trendTypePolynomialOrders

$trendTypePolynomialOrders : array<mixed,string>

Names of the best-fit Trend polynomial orders.

Type

array<mixed,string>

$trendCache

$trendCache : array<mixed,\PhpOffice\PhpSpreadsheet\Shared\Trend\bestFit>

Cached results for each method when trying to identify which provides the best fit.

Type

array<mixed,\PhpOffice\PhpSpreadsheet\Shared\Trend\bestFit>

Methods

calculate()

calculate(  $trendType = self::TREND_BEST_FIT,   $yValues = array(),   $xValues = array(),   $const = true)

Parameters

	$trendType
	$yValues
	$xValues
	$const