tab_double (tbl, 1, 2, 0, roc->pos, &F_8_0);
tab_double (tbl, 1, 3, 0, roc->neg, &F_8_0);
tab_double (tbl, 2, 2, 0, roc->pos_weighted, 0);
tab_double (tbl, 2, 3, 0, roc->neg_weighted, 0);
tab_double (tbl, 1, 2, 0, roc->pos, &F_8_0);
tab_double (tbl, 1, 3, 0, roc->neg, &F_8_0);
tab_double (tbl, 2, 2, 0, roc->pos_weighted, 0);
tab_double (tbl, 2, 3, 0, roc->neg_weighted, 0);