// number of comparisons i.e. with groups A,B,C = AA, AB, AC, BA, BB, BC...;
for (int i=0; i<numGroups; i++) {
for (int l = 0; l < numGroups; l++) {
// number of comparisons i.e. with groups A,B,C = AA, AB, AC, BA, BB, BC...;
for (int i=0; i<numGroups; i++) {
for (int l = 0; l < numGroups; l++) {