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clu.h File Reference

Simple hierarchical clustering. More...

#include "mattri.h"

Include dependency graph for clu.h:

Go to the source code of this file.

Compounds
struct	clu_
	Clu_ : a cluster structure. More...
Typedefs
typedef struct clu_	Clu_
	Clu_ : a cluster structure. More...
Functions
Clu_*	make_clus (const Mattri_ *Dist, int *Cluno)
	make_clus(Dist, Cluno): performs the clustering. More...
void	free_clusters (Clu_ Clus[], int Cluno)
	free_clusters(Clus, Cluno): frees up the cluster "forest" (i.e. More...
void	print_clus (const Clu_ *Clu, FILE *Out)
	print_clus(Clu, Out): prints the whole cluster tree with root pointed to by Clu to Out.

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Detailed Description

Simple hierarchical clustering.

Definition in file clu.h.

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Typedef Documentation

typedef struct clu_ Clu_

Clu_ : a cluster structure. The things to be clustered are represented by integers running from 0 upwards. The clusters are organised into a binary tree; non-leaf nodes always have 2 sub-nodes.

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Function Documentation

Clu_ * make_clus ( const Mattri_ * Dist, int * Cluno )

make_clus(Dist, Cluno): performs the clustering. The distances between the things to be clustered are in the Dist matrix: the [i][j]:th entry corresponds to the (non-negative) distance between the i and j. Only the lower triangle is used, i>=j. Self-distances are 0.0. Return value: a forest of Clus_ struct trees describing the clusters (allocated within). The no. of cluster trees is returned in *Cluno. Returns NULL on error. Referenced by clu_::Sed().

void free_clusters ( Clu_ Clus[], int Cluno )

free_clusters(Clus, Cluno): frees up the cluster "forest" (i.e. the array of cluster trees generated by make_clus(...)). Referenced by clu_::Sed().

void print_clus ( const Clu_ * Clu, FILE * Out )

print_clus(Clu, Out): prints the whole cluster tree with root pointed to by Clu to Out. Referenced by clu_::Sed().

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