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<?php
namespace PhpOffice\PhpSpreadsheet\Chart;
class TrendLine extends Properties
{
const TRENDLINE_EXPONENTIAL = 'exp';
const TRENDLINE_LINEAR = 'linear';
const TRENDLINE_LOGARITHMIC = 'log';
const TRENDLINE_POLYNOMIAL = 'poly'; // + 'order'
const TRENDLINE_POWER = 'power';
const TRENDLINE_MOVING_AVG = 'movingAvg'; // + 'period'
const TRENDLINE_TYPES = [
self::TRENDLINE_EXPONENTIAL,
self::TRENDLINE_LINEAR,
self::TRENDLINE_LOGARITHMIC,
self::TRENDLINE_POLYNOMIAL,
self::TRENDLINE_POWER,
self::TRENDLINE_MOVING_AVG,
];
/** @var string */
private $trendLineType = 'linear'; // TRENDLINE_LINEAR
/** @var int */
private $order = 2;
/** @var int */
private $period = 3;
/** @var bool */
private $dispRSqr = false;
/** @var bool */
private $dispEq = false;
/** @var string */
private $name = '';
/** @var float */
private $backward = 0.0;
/** @var float */
private $forward = 0.0;
/** @var float */
private $intercept = 0.0;
/**
* Create a new TrendLine object.
*/
public function __construct(
string $trendLineType = '',
?int $order = null,
?int $period = null,
bool $dispRSqr = false,
bool $dispEq = false,
?float $backward = null,
?float $forward = null,
?float $intercept = null,
?string $name = null
) {
parent::__construct();
$this->setTrendLineProperties(
$trendLineType,
$order,
$period,
$dispRSqr,
$dispEq,
$backward,
$forward,
$intercept,
$name
);
}
public function getTrendLineType(): string
{
return $this->trendLineType;
}
public function setTrendLineType(string $trendLineType): self
{
$this->trendLineType = $trendLineType;
return $this;
}
public function getOrder(): int
{
return $this->order;
}
public function setOrder(int $order): self
{
$this->order = $order;
return $this;
}
public function getPeriod(): int
{
return $this->period;
}
public function setPeriod(int $period): self
{
$this->period = $period;
return $this;
}
public function getDispRSqr(): bool
{
return $this->dispRSqr;
}
public function setDispRSqr(bool $dispRSqr): self
{
$this->dispRSqr = $dispRSqr;
return $this;
}
public function getDispEq(): bool
{
return $this->dispEq;
}
public function setDispEq(bool $dispEq): self
{
$this->dispEq = $dispEq;
return $this;
}
public function getName(): string
{
return $this->name;
}
public function setName(string $name): self
{
$this->name = $name;
return $this;
}
public function getBackward(): float
{
return $this->backward;
}
public function setBackward(float $backward): self
{
$this->backward = $backward;
return $this;
}
public function getForward(): float
{
return $this->forward;
}
public function setForward(float $forward): self
{
$this->forward = $forward;
return $this;
}
public function getIntercept(): float
{
return $this->intercept;
}
public function setIntercept(float $intercept): self
{
$this->intercept = $intercept;
return $this;
}
public function setTrendLineProperties(
?string $trendLineType = null,
?int $order = 0,
?int $period = 0,
?bool $dispRSqr = false,
?bool $dispEq = false,
?float $backward = null,
?float $forward = null,
?float $intercept = null,
?string $name = null
): self {
if (!empty($trendLineType)) {
$this->setTrendLineType($trendLineType);
}
if ($order !== null) {
$this->setOrder($order);
}
if ($period !== null) {
$this->setPeriod($period);
}
if ($dispRSqr !== null) {
$this->setDispRSqr($dispRSqr);
}
if ($dispEq !== null) {
$this->setDispEq($dispEq);
}
if ($backward !== null) {
$this->setBackward($backward);
}
if ($forward !== null) {
$this->setForward($forward);
}
if ($intercept !== null) {
$this->setIntercept($intercept);
}
if ($name !== null) {
$this->setName($name);
}
return $this;
}
}
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