有序地质量最优分割法,目前国内应用较广,而一些简便分割法却不多见。本文欲对所知的几种方法予以比较,并提出增补意见。一最早由费歇(Fisher,1958)提出的有序样品聚类法(最优分割法),简称V型法,是目前地层划分中较普遍采用的数学方法。 V型法从有序样品分段的段内特征差异尽可能小,段间特征差异尽可能大的原则出发,寻求最优的分段结果。在数学上用方差(或离差平方和)来定义。 Optimal segmentation of the orderly quality of the law, the current domestic application is broader, and some simple segmentation is rare. This article intends to compare several of the known methods and to add additional comments. The first orderly clustering method (Optimal Partition Method) proposed by Fisher (1958), referred to as the V-type method, is the most commonly used mathematical method in stratigraphic division. The V-method is based on the principle of minimizing the difference of features in an in-order sample segment as much as possible and the feature differences among segments as large as possible to find the optimal segmentation result. It is mathematically defined as variance (or sum of squared deviations).