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cfdiameter.h
Go to the documentation of this file.
1
#ifndef CFENTRYDIAMETER_H
2
#define CFENTRYDIAMETER_H
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4
#include <cmath>
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6
#include "../base/attributecalculator.h"
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8
namespace
CluE
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{
14
template
<
typename
T>
class
CFDiameter
:
public
AttributeCalculator
<CFEntry<T> >
15
{
16
public
:
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virtual
CFDiameter
*
clone
()
const
;
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19
virtual
double
calculate
(
CFEntry<T>
const
&)
const
;
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};
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22
template
<
typename
T>
CFDiameter<T>
*
CFDiameter<T>::clone
()
const
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{
24
return
new
CFDiameter
(*
this
);
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}
26
27
template
<
typename
T>
double
CFDiameter<T>::calculate
(
CFEntry<T>
const
& x)
const
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{
29
double
numerator = 2*(x.
number
*x.
SS
- x.
LS
*x.
LS
);
30
double
denominator = x.
number
* (x.
number
-1);
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return
std::pow(numerator / denominator, 0.5);
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}
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}
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36
#endif
CluE::CFEntry::SS
double SS
Squared sum.
Definition:
cfentry.h:37
CluE::AttributeCalculator
Abstract base class for attribute calculation (e.g. diameter).
Definition:
attributecalculator.h:12
CluE::CFEntry::LS
T LS
Linear sum.
Definition:
cfentry.h:32
CluE::CFEntry::number
size_t number
Number of points contained in the feature.
Definition:
cfentry.h:27
CluE::CFDiameter::clone
virtual CFDiameter * clone() const
Definition:
cfdiameter.h:22
CluE::CFDiameter
Calculates the diameter D of a given CFEntry.
Definition:
cfdiameter.h:14
CluE::CFEntry
Clustering feature tree entry.
Definition:
cfentry.h:22
CluE::CFDiameter::calculate
virtual double calculate(CFEntry< T > const &) const
Computes a characteristic attribute of a given object.
Definition:
cfdiameter.h:27
src
cftree
cfdiameter.h
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