c_nclasses.c

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/*!
   \file cluster/c_nclasses.c
 
   \brief Cluster library - Number of classes
 
   (C) 2001-2009 by the GRASS Development Team
 
   This program is free software under the GNU General Public License
   (>=v2). Read the file COPYING that comes with GRASS for details.
 
   \author Original author CERL
 */
 
#include <grass/cluster.h>
 
/*!
   \brief Get number of classes
 
   \param C pointer to Cluster structure
   \param minsize minimum class size
 
   \return number of classes
 */
int I_cluster_nclasses(struct Cluster *C, int minsize)
{
    int i, n;
 
    n = 0;
    for (i = 0; i < C->nclasses; i++)
        if (C->count[i] >= minsize)
            n++;
    return n;
}