QwtBoxStatisticsCalculator类 参考

Helper class for computing boxplot statistics from raw data 更多...

#include <qwt_box_statistics.h>

Public 类型
enum	WhiskerMethod {   Tukey , Percentile , MinMax , StandardDeviation ,   StandardError }
	Whisker calculation method 更多...

Public 成员函数
	QwtBoxStatisticsCalculator ()
	Constructor with default Tukey method
void	setWhiskerMethod (WhiskerMethod method)
	Set whisker calculation method
WhiskerMethod	whiskerMethod () const
	Get whisker calculation method
void	setWhiskerCoefficient (double coeff)
	Set whisker coefficient (1.5 for Tukey, percentile for Percentile method)
double	whiskerCoefficient () const
	Get whisker coefficient

静态 Public 成员函数
static QwtBoxSample	calculate (double position, const QVector< double > &sortedData, WhiskerMethod method=Tukey, double coefficient=1.5)
	Compute QwtBoxSample from sorted data
static QwtBoxSample	calculateFromRaw (double position, const QVector< double > &rawData, WhiskerMethod method=Tukey, double coefficient=1.5)
	Compute QwtBoxSample from unsorted data (sorts internally)
static QVector< double >	extractOutliers (const QwtBoxSample &sample, const QVector< double > &sortedData)
	Extract outliers given box sample and sorted data
static void	calculateFull (double position, const QVector< double > &rawData, QwtBoxSample &sample, QwtBoxOutlierSample &outliers, WhiskerMethod method=Tukey, double coefficient=1.5)
	Compute full statistics (sample + outliers) in one call

详细描述

Helper class for computing boxplot statistics from raw data

Provides static methods to calculate whisker bounds, quartiles, median, and extract outliers using various methods (Tukey, percentile, SD, SE).

成员枚举类型说明

WhiskerMethod

enum QwtBoxStatisticsCalculator::WhiskerMethod

Whisker calculation method

枚举值
Tukey	Tukey's method: whiskers extend to 1.5×IQR from Q1/Q3 (default)
Percentile	Percentile method: whiskers at specified percentile range
MinMax	Min/Max method: whiskers at actual data min/max
StandardDeviation	Standard deviation method: whiskers at mean ± coeff×SD
StandardError	Standard error method: whiskers at mean ± coeff×SE

构造及析构函数说明

QwtBoxStatisticsCalculator()

QwtBoxStatisticsCalculator::QwtBoxStatisticsCalculator

(

)

Constructor with default Tukey method

Initializes the calculator with Tukey whisker method and coefficient 1.5.

成员函数说明

calculate()

QwtBoxSample QwtBoxStatisticsCalculator::calculate ( double  position, const QVector< double > &  sortedData, WhiskerMethod  method = Tukey, double  coefficient = 1.5  )

static

Compute QwtBoxSample from sorted data

Compute boxplot statistics from sorted data

Calculates whisker bounds, quartiles, median, and outlier count using the specified whisker method.

参数

[in]	position	The position value for the resulting sample
[in]	sortedData	Pre-sorted data vector
[in]	method	Whisker calculation method (default: Tukey)
[in]	coefficient	Whisker coefficient (default: 1.5)

返回

QwtBoxSample containing computed statistics

calculateFromRaw()

QwtBoxSample QwtBoxStatisticsCalculator::calculateFromRaw ( double  position, const QVector< double > &  rawData, WhiskerMethod  method = Tukey, double  coefficient = 1.5  )

static

Compute QwtBoxSample from unsorted data (sorts internally)

Compute boxplot statistics from unsorted raw data

Sorts the data internally and then calculates statistics.

参数

[in]	position	The position value for the resulting sample
[in]	rawData	Unsorted raw data vector
[in]	method	Whisker calculation method (default: Tukey)
[in]	coefficient	Whisker coefficient (default: 1.5)

返回

QwtBoxSample containing computed statistics

calculateFull()

void QwtBoxStatisticsCalculator::calculateFull ( double  position, const QVector< double > &  rawData, QwtBoxSample &  sample, QwtBoxOutlierSample &  outliers, WhiskerMethod  method = Tukey, double  coefficient = 1.5  )

static

Compute full statistics (sample + outliers) in one call

Compute full boxplot statistics including outliers

Calculates both the box sample and extracts outlier values in one call.

参数

[in]	position	The position value for the resulting samples
[in]	rawData	Unsorted raw data vector
[out]	sample	Output parameter for computed box statistics
[out]	outliers	Output parameter for extracted outlier values
[in]	method	Whisker calculation method (default: Tukey)
[in]	coefficient	Whisker coefficient (default: 1.5)

extractOutliers()

QVector< double > QwtBoxStatisticsCalculator::extractOutliers ( const QwtBoxSample &  sample, const QVector< double > &  sortedData  )

static

Extract outliers given box sample and sorted data

Extract outlier values from sorted data based on box sample

Identifies all values outside the whisker bounds as outliers.

参数

[in]	sample	The box sample containing whisker bounds
[in]	sortedData	Pre-sorted data vector

返回

Vector of outlier values

setWhiskerCoefficient()

void QwtBoxStatisticsCalculator::setWhiskerCoefficient

(

double

coeff

)

Set whisker coefficient (1.5 for Tukey, percentile for Percentile method)

Set the whisker coefficient

参数

[in]

coeff

Coefficient value (1.5 for Tukey method, percentile value for Percentile method)

setWhiskerMethod()

void QwtBoxStatisticsCalculator::setWhiskerMethod

(

WhiskerMethod

method

)

Set whisker calculation method

Set the whisker calculation method

参数

[in]

method

The whisker method to use (Tukey, Percentile, MinMax, StandardDeviation, StandardError)

whiskerCoefficient()

double QwtBoxStatisticsCalculator::whiskerCoefficient

(

)

const

Get whisker coefficient

Get the whisker coefficient

返回

Current whisker coefficient

whiskerMethod()

QwtBoxStatisticsCalculator::WhiskerMethod QwtBoxStatisticsCalculator::whiskerMethod

(

)

const

Get whisker calculation method

Get the whisker calculation method

返回

Current whisker method

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该类的文档由以下文件生成:

• /home/runner/work/QWT/QWT/src/core/qwt_box_statistics.h
• /home/runner/work/QWT/QWT/src/core/qwt_box_statistics.cpp