Function: mod(mean(log(numbers("per") if numbers('yxr') > mean(numbers("per"), numbers('xry')) else numbers('xry'), mean(numbers("per"), numbers('xry'))), numbers('xry') if mean(numbers("per"), numbers('xry')) > numbers('yxr') else numbers("per")), log(numbers("per") if mean(numbers("per"), numbers('xry')) > numbers('xry') else numbers('yxr'), mean(numbers("per"), numbers('xry'))))