#include <getopt.h>
#include <ctype.h>

void usage(char *s)
{
	fprintf(stderr, "Usage: %s [-v] -i input file \n [-o] output files suffix \n -n number of records/observations \n -m number of features/dimensions \n -k minimum number of groups \n -K maximum number of groups \n [-I] maximum number of iterations \n [-t] number of tries in the random initialization \n [-s] number of short iterations \n [-r] robust scale estimate \n [-a] alpha value  \n", s);
}