Houston A S
Phys Med Biol. 1984 Sep;29(9):1109-16. doi: 10.1088/0031-9155/29/9/007.
The use of an oblique transformation to obtain physiological factors from a factor analysis of dynamic studies has recently been suggested. The technique involves using an apex-seeking routine to enable these factors and their contribution images to be formed. This paper investigates the effects of errors in apex-finding on these factor images. In particular it is shown that, apart from scaling, the factor image obtained from a given apex is independent of the position of that apex (and hence is independent of its own factor).
最近有人建议使用斜变换从动态研究的因子分析中获取生理因素。该技术涉及使用一种寻找顶点的程序，以使这些因素及其贡献图像得以形成。本文研究了顶点查找中的误差对这些因子图像的影响。特别指出的是，除了缩放之外，从给定顶点获得的因子图像与该顶点的位置无关（因此也与它自身的因子无关）。
