Fisher线性判别函数是研究这类判别函数中最有影响的方法之一。对线性判别函数的研究就是从R.A.Fisher在1936年发表的论文开始的。-Fisher linear discriminant function discriminant function is one of the most influential of these methods research. Research on linear discriminant function is　RAFisher published in 1936, the paper began.