Fourthly, software named BCD has been designed in this paper to computed Bray-Curtis dissimilarities. The results of BCD software can be written to the data windows of other general statistic analysis software from their data connector.

• 第四，本论文设计了一个用来计算Bray-Curtis非相似性系数的软件BCD，可以直接从其它通用分析软件的数据接口读入该软件的计算结果到这些统计软件的数据窗口中，以进行一些多变量统计分析。