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- /*! \page clusterlib GRASS Cluster analysis statistics Library
- by GRASS Development Team (http://grass.osgeo.org)
- \section clusterintro Introduction
- This library does a k-means style of cluster analysis. It is currently
- only used by <tt>i.cluster</tt>.
- The library functions are defined in <tt>cluster.h</tt>.
- \code
- #include <grass/cluster.h>
- \endcode
- \section ClusterStruct Cluster structure
- \code
- struct Cluster
- {
- int nbands; /* number of bands */
- int npoints; /* number of points */
- DCELL **points; /* array of points */
- int np;
- double *band_sum; /* sum over each band */
- double *band_sum2; /* sum of squares over each band */
- int *class; /* class of each point */
- int *reclass; /* for removing empty classes */
- int *count; /* number of points in each class */
- int *countdiff; /* change in count */
- double **sum; /* sum over band per class */
- double **sumdiff; /* change in sum */
- double **sum2; /* sum of squares per band per class */
- double **mean; /* initial class means */
- struct Signature S; /* final signature(s) */
- int nclasses; /* number of classes */
- int merge1, merge2;
- int iteration; /* number of iterations */
- double percent_stable; /* percentage stable */
- };
- \endcode
- \section listFn List of functions
- - I_cluster_assign()
- - I_cluster_begin()
- - I_cluster_clear()
- - I_cluster_distinct()
- - I_cluster_exec()
- - I_cluster_exec_allocate()
- - I_cluster_exec_free()
- - I_cluster_means()
- - I_cluster_merge()
- - I_cluster_nclasses()
- - I_cluster_point()
- - I_cluster_begin_point_set()
- - I_cluster_point_part()
- - I_cluster_end_point_set()
- - I_cluster_reassign()
- - I_cluster_reclass()
- - I_cluster_separation()
- - I_cluster_signatures()
- - I_cluster_sum2()
- */
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