[synclust.git] / src / sources / neighbors.h

#ifndef SYNCLUST_NEIGHBORS_H
#define SYNCLUST_NEIGHBORS_H

#include "sources/utils/boolean.h"
#include <cgds/List.h>

// evaluate distance between M[i,] and M[ii,]
double getDistance(
	double* M, 
	int i, 
	int ii, 
	int ncol, 
	double alpha, 
	bool simpleDists
);

// symmetrize neighborhoods lists (augmenting or reducing)
void symmetrizeNeighbors(
	List** neighborhoods, 
	int nrow, 
	int gmode
);

// restrain neighborhoods: choose one per quadrant (for convex optimization)
void restrainToQuadrants(
	List** neighborhoods, 
	int nrow, 
	int ncol, 
	double* M
);

// structure to store a neighbor index and the distance to this neighbor
typedef struct IndDist {
	int index;
	double distance;
} IndDist;

// Function to obtain neighborhoods.
// NOTE: alpha = weight parameter to compute distances; -1 means "adaptive"
List** getNeighbors_core(
	double* M, 
	double alpha, 
	int k, 
	int gmode, 
	bool simpleDists, 
	int nrow, 
	int ncol
);

#endif
Commit	Line	Data
	1	#ifndef SYNCLUST_NEIGHBORS_H
	2	#define SYNCLUST_NEIGHBORS_H
	3
	4	#include "sources/utils/boolean.h"
	5	#include <cgds/List.h>
	6
	7	// evaluate distance between M[i,] and M[ii,]
	8	double getDistance(
	9	double* M,
	10	int i,
	11	int ii,
	12	int ncol,
	13	double alpha,
	14	bool simpleDists
	15	);
	16
	17	// symmetrize neighborhoods lists (augmenting or reducing)
	18	void symmetrizeNeighbors(
	19	List** neighborhoods,
	20	int nrow,
	21	int gmode
	22	);
	23
	24	// restrain neighborhoods: choose one per quadrant (for convex optimization)
	25	void restrainToQuadrants(
	26	List** neighborhoods,
	27	int nrow,
	28	int ncol,
	29	double* M
	30	);
	31
	32	// structure to store a neighbor index and the distance to this neighbor
	33	typedef struct IndDist {
	34	int index;
	35	double distance;
	36	} IndDist;
	37
	38	// Function to obtain neighborhoods.
	39	// NOTE: alpha = weight parameter to compute distances; -1 means "adaptive"
	40	List** getNeighbors_core(
	41	double* M,
	42	double alpha,
	43	int k,
	44	int gmode,
	45	bool simpleDists,
	46	int nrow,
	47	int ncol
	48	);
	49
	50	#endif