Tarter M E
Comput Programs Biomed. 1978 Jun;8(2):81-6. doi: 10.1016/0010-468x(78)90041-7.
A method is described for compacting homogeneous and separating heterogeneous data subcomponents. Allowance is made for heterogeneity due to a concomitant variable. When used with a large sample size, the major component of bivariate normal data will tend to be compacted to a single point. By applying the algorithm twice, the major component of bivariate lognormal data will tend to be compacted to a single point. These procedures have been implemented as part of an interactive graphical system for convenient use by biomedical researchers.
描述了一种压缩同质数据子组件并分离异质数据子组件的方法。考虑到伴随变量导致的异质性。当用于大样本量时，二元正态数据的主要成分将倾向于被压缩到一个点。通过应用该算法两次，二元对数正态数据的主要成分将倾向于被压缩到一个点。这些程序已作为交互式图形系统的一部分实施，以便生物医学研究人员方便使用。
