class ManhattanMetric
The Manhattan distance (city block distance, norm, rectilinear distance or taxi cab metric ) is a special case of general Minkowski metric and computes the absolute differences between the feature dimensions of two data points.
在文件ManhattanMetric.h第36行定义。
公有成员 | |
CManhattanMetric () | |
CManhattanMetric (CSimpleFeatures< float64_t > *l, CSimpleFeatures< float64_t > *r) | |
virtual | ~CManhattanMetric () |
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) |
CManhattanMetric | ( | ) |
default constructor
在文件ManhattanMetric.cpp第20行定义。
CManhattanMetric | ( | CSimpleFeatures< float64_t > * | l, |
CSimpleFeatures< float64_t > * | r | ||
) |
constructor
l | features of left-hand side |
r | features of right-hand side |
在文件ManhattanMetric.cpp第25行定义。
~CManhattanMetric | ( | ) | [virtual] |
在文件ManhattanMetric.cpp第31行定义。
void cleanup | ( | ) | [virtual] |
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ManhattanMetric.cpp第47行定义。
virtual EDistanceType get_distance_type | ( | ) | [virtual] |
virtual const char* get_name | ( | ) | const [virtual] |
init distance
l | features of left-hand side |
r | features of right-hand side |
重载CSimpleDistance< float64_t >。
在文件ManhattanMetric.cpp第36行定义。