公有成员 | 保护成员

CBrayCurtisDistance类参考


详细描述

class Bray-Curtis distance

The Bray-Curtis distance (Sorensen distance) is similar to the Manhattan distance with normalization.

\[\displaystyle d(\bf{x},\bf{x}') = \frac{\sum_{i=1}^{n}|x_{i}-x'_{i}|}{\sum_{i=1}^{n}|x_{i} +x'_{i}|} \quad x,x' \in R^{n} \]

在文件BrayCurtisDistance.h31行定义。

继承图,类CBrayCurtisDistance
Inheritance graph
[图例]

所有成员的列表。

公有成员

 CBrayCurtisDistance ()
 CBrayCurtisDistance (CSimpleFeatures< float64_t > *l, CSimpleFeatures< float64_t > *r)
virtual ~CBrayCurtisDistance ()
virtual bool init (CFeatures *l, CFeatures *r)
virtual void cleanup ()
virtual EDistanceType get_distance_type ()
virtual const char * get_name () const

保护成员

virtual float64_t compute (int32_t idx_a, int32_t idx_b)

构造及析构函数文档

default constructor

在文件BrayCurtisDistance.cpp20行定义。

constructor

参数:
lfeatures of left-hand side
rfeatures of right-hand side

在文件BrayCurtisDistance.cpp25行定义。

~CBrayCurtisDistance (  ) [virtual]

在文件BrayCurtisDistance.cpp31行定义。


成员函数文档

void cleanup (  ) [virtual]

cleanup distance

实现了CDistance

在文件BrayCurtisDistance.cpp43行定义。

float64_t compute ( int32_t  idx_a,
int32_t  idx_b 
) [protected, virtual]

compute distance for features a and b idx_{a,b} denote the index of the feature vectors in the corresponding feature object

实现了CDistance

在文件BrayCurtisDistance.cpp47行定义。

virtual EDistanceType get_distance_type (  ) [virtual]

get distance type we are

返回:
distance type BRAYCURTIS

实现了CDistance

在文件BrayCurtisDistance.h60行定义。

virtual const char* get_name (  ) const [virtual]

get name of the distance

返回:
name Bray-Curtis distance

实现了CSGObject

在文件BrayCurtisDistance.h66行定义。

bool init ( CFeatures l,
CFeatures r 
) [virtual]

init distance

参数:
lfeatures of left-hand side
rfeatures of right-hand side
返回:
if init was successful

重载CSimpleDistance< float64_t >

在文件BrayCurtisDistance.cpp36行定义。


该类的文档由以下文件生成:

SHOGUN Machine Learning Toolbox - Documentation