StatData Class Reference

StatData. More...

#include <statdata.h>

Public Member Functions
	StatData ()
	StatData (QVector< double > &data)
void	setData (QVector< double > &data)
void	calculate ()
double	sum () const
	sum of values More...
double	mean () const
	arithmetic mean More...
double	min () const
	minimum value More...
double	max () const
	maximum value More...
double	median () const
	2nd quartil = median More...
double	percentile25 () const
	1st quartil More...
double	percentile75 () const
	3rd quartil More...
double	percentile (const int percent) const
	get value of a given percentile (0..100) More...
double	standardDev () const
	get the standard deviation (of the population) More...

Static Public Member Functions
static QVector< int >	calculateRanks (const QVector< double > &data, bool descending=false)
	rank data. More...
static void	normalize (QVector< double > &data, double targetSum)
	normalize, i.e. the sum of all items after processing is targetSum More...

Detailed Description

StatData.

Helper class for statistics. This class calculates from a double-vector relevant information used for BoxPlots.

Constructor & Destructor Documentation

StatData() [1/2]

StatData::StatData ( )

inline

StatData() [2/2]

StatData::StatData

(

QVector< double > &

data

)

Member Function Documentation

calculate()

void StatData::calculate

(

)

calculateRanks()

QVector< int > StatData::calculateRanks ( const QVector< double > &  data, bool  descending = false  )

static

rank data.

calculate Ranks.

Parameters

data	values for N items,
descending	true: better ranks for lower values

Returns

a vector that contains for the Nth data item the resulting rank. Example: in: {5, 2, 7, 5} out: {2, 1, 4, 2}

max()

double StatData::max ( ) const

inline

maximum value

mean()

double StatData::mean ( ) const

inline

arithmetic mean

median()

double StatData::median ( ) const

inline

2nd quartil = median

min()

double StatData::min ( ) const

inline

minimum value

normalize()

void StatData::normalize ( QVector< double > &  data, double  targetSum  )

static

normalize, i.e. the sum of all items after processing is targetSum

scale the data in such a way that the sum of all data items is "targetSum"

percentile()

double StatData::percentile

(

const int

percent

)

const

get value of a given percentile (0..100)

percentile25()

double StatData::percentile25 ( ) const

inline

1st quartil

percentile75()

double StatData::percentile75 ( ) const

inline

3rd quartil

setData()

void StatData::setData ( QVector< double > &  data )

inline

standardDev()

double StatData::standardDev ( ) const

inline

get the standard deviation (of the population)

sum()

double StatData::sum ( ) const

inline

sum of values

---

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

• C:/dev/iland/src/tools/statdata.h
• C:/dev/iland/src/tools/statdata.cpp