QwtBoxStatisticsCalculator Class Reference

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

#include <qwt_box_statistics.h>

Public Types
enum	WhiskerMethod {   Tukey , Percentile , MinMax , StandardDeviation ,   StandardError }
	Whisker calculation method . More...

Public Member Functions
	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.

Static Public Member Functions
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.

Detailed Description

Helper class for computing boxplot statistics from raw data.

Member Enumeration Documentation

WhiskerMethod

enum QwtBoxStatisticsCalculator::WhiskerMethod

Whisker calculation method .

Enumerator
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.

Constructor & Destructor Documentation

QwtBoxStatisticsCalculator()

QwtBoxStatisticsCalculator::QwtBoxStatisticsCalculator

(

)

Constructor with default Tukey method.

Member Function Documentation

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.

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.

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.

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.

setWhiskerCoefficient()

void QwtBoxStatisticsCalculator::setWhiskerCoefficient

(

double

coeff

)

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

Set the whisker coefficient.

setWhiskerMethod()

void QwtBoxStatisticsCalculator::setWhiskerMethod

(

WhiskerMethod

method

)

Set whisker calculation method.

Set the whisker calculation method.

whiskerCoefficient()

double QwtBoxStatisticsCalculator::whiskerCoefficient

(

)

const

Get whisker coefficient.

Get the whisker coefficient.

whiskerMethod()

QwtBoxStatisticsCalculator::WhiskerMethod QwtBoxStatisticsCalculator::whiskerMethod

(

)

const

Get whisker calculation method.

Get the whisker calculation method.

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The documentation for this class was generated from the following files:

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