#include <yat/statistics/SNRScore.h>
Public Member Functions | |
SNRScore (bool absolute=true) | |
Default Constructor. | |
virtual | ~SNRScore (void) |
The destructor. | |
double | score (const classifier::Target &target, const utility::VectorBase &value) const |
double | score (const classifier::Target &target, const classifier::DataLookupWeighted1D &value) const |
double | score (const classifier::Target &target, const utility::VectorBase &value, const utility::VectorBase &weight) const |
void | absolute (bool absolute) |
Function changing mode of Score. | |
virtual double | score (const classifier::Target &target, const classifier::DataLookup1D &value) const |
double | score (const classifier::Target &target, const classifier::DataLookup1D &value, const classifier::DataLookup1D &weight) const |
Protected Attributes | |
bool | absolute_ |
Also sometimes referred to as Golub score. The score is the ratio between difference in mean and the sum of standard deviations for two groups: where is standard deviation.
double theplu::yat::statistics::Score::score | ( | const classifier::Target & | target, | |
const classifier::DataLookup1D & | value, | |||
const classifier::DataLookup1D & | weight | |||
) | const [inherited] |
Function calculating the weighted version of score. In absolute mode, also the score using negated class labels is calculated, and the largest of the two scores are calculated. Absolute mode should be used when two-tailed test is wanted.
value and weight are copied to utility::vector and the corresponding operator is called. If speed is important this operator should be implemented in inherited class to avoid copying.
virtual double theplu::yat::statistics::Score::score | ( | const classifier::Target & | target, | |
const classifier::DataLookup1D & | value | |||
) | const [virtual, inherited] |
Function calculating the score. In absolute mode, also the score using negated class labels is calculated, and the largest of the two scores are calculated.
value is copied to a utility::vector and that operator is called. If speed is important this operator should be implemented in inherited class to avoid copying.
double theplu::yat::statistics::SNRScore::score | ( | const classifier::Target & | target, | |
const utility::VectorBase & | value, | |||
const utility::VectorBase & | weight | |||
) | const [virtual] |
SNRScore is defined as where and are weighted versions of mean and standard deviation, respectively.
Implements theplu::yat::statistics::Score.
double theplu::yat::statistics::SNRScore::score | ( | const classifier::Target & | target, | |
const classifier::DataLookupWeighted1D & | value | |||
) | const [virtual] |
SNRScore is defined as where and are weighted versions of mean and standard deviation, respectively.
Reimplemented from theplu::yat::statistics::Score.
double theplu::yat::statistics::SNRScore::score | ( | const classifier::Target & | target, | |
const utility::VectorBase & | value | |||
) | const [virtual] |
SNRScore is defined as where and are mean and standard deviation, respectively.
Implements theplu::yat::statistics::Score.
bool theplu::yat::statistics::Score::absolute_ [protected, inherited] |
true if method is absolute, which means if score is below expected value (by chance) E, score returns E-score+E instead.