Denby L, Mallows C L, Blank S G
AT&T Bell Laboratories, Murray Hill, NJ 07974-0636.
Stat Med. 1994 Feb 15;13(3):275-91. doi: 10.1002/sim.4780130309.
This paper demonstrates the power of statistical graphics in gleaning information from very large medical data sets. In the case of the particular data set described here (the wideband external pulse signal) little was known about the shape of the signal and the relationship of that shape to the characteristics of the related physical system, the cardiovascular system. Previous numerical statistical analyses of the data were unfruitful in finding the important relationships which were easily discovered through the appropriately designed graphics. The paper also describes the process of designing graphics to help in discovering the important relationships in the data.
本文展示了统计图形在从非常大的医学数据集中收集信息方面的强大作用。就此处所描述的特定数据集(宽带外部脉冲信号)而言,人们对该信号的形状以及该形状与相关物理系统(心血管系统)特征之间的关系了解甚少。以前对这些数据进行的数值统计分析未能找到通过适当设计的图形就能轻易发现的重要关系。本文还描述了设计图形以帮助发现数据中重要关系的过程。