source: proiecte/Parallel-DT/R8/Src/average.c @ 24

/*************************************************************************/
/*                                                                       */
/*      Average results for training and test sets                       */
/*      ------------------------------------------                       */
/*                                                                       */
/*      This is a generic program that averages any numbers found on     */
/*      a set of lines of the same pattern.                              */
/*                                                                       */
/*************************************************************************/


#include <stdio.h>

#define MAXLINE         200     /* max line length */
#define MAXVALS          10     /* max values to be averaged */


main()
{
    char Line[MAXLINE], *p1, *p2;
    int Numbers=0, Lines=0, i, TrainTest;
    float Val, Sum[2][MAXVALS];
    double strtod();

    for ( i = 0 ; i < MAXVALS ; i++ )
    {
        Sum[0][i] = Sum[1][i] = 0;
    }

    while ( fgets(Line, MAXLINE, stdin) )
    {
        i = 0;
        TrainTest = Lines % 2;
        printf("%s", Line);

        /*  Count the numbers appearing on the line  */

        for ( p1 = Line ; *p1 != '\n' ; p1++ )
        {
            if ( *p1 < '0' || *p1 > '9' ) continue;

            Val = strtod(p1, &p2);
            Sum[TrainTest][i++] += Val;
            p1 = p2-1;
        }

        /*  The number of numbers must match any previous lines  */

        if ( Lines )
        {
            if ( i != Numbers ) exit();
        }
        else
        {
            Numbers = i;
        }

        Lines++;
    }

    putchar('\n');
    for ( TrainTest = 0 ; TrainTest <= 1 ; TrainTest++ )
    {
        i = 0;
        printf("%s:\t", TrainTest ? "test" : "train");

        for ( p1 = Line ; *p1 != '\n' ; p1++ )
        {
            if ( *p1 < '0' || *p1 > '9' )
            {
                putchar(*p1);
            }
            else
            {
                printf("%.1f", Sum[TrainTest][i++] / (0.5 * Lines));
                strtod(p1, &p2);
                p1 = p2-1;
            }
        }
        putchar('\n');
    }
}