Based on the fuzzy theory, such concepts as the fuzzy mean and fuzzy variance are introduced to determine thc linear discriminant function of fuzzy graphs thus providing the maximum separation of thesc fuzzy groups in a real space.

• 本方法从模糊集理论出发,引进模糊平均数、模糊方差及模糊方差比,确定一个线性判别函数使在实数空间上最大可能分离模糊类。