This paper deals with the multivariate vector analysis of quality data by geometric transformation, rotating coordinates and computation of the principal component of initial variables.
本文讨论多元质量数据的矢量分析方法，几何变换，坐标旋转和初始变量的主分量计算不同变量的主分量值。
2
The image distribution map is drawn, and the chart coordinates are determined according to principal components load matrix.
绘制意象分布图，并根据主成分载荷矩阵确定图的坐标。
3
The paper introduces the method and application procedure for the accurate measurement on highway cross-section by use of infrared ray instrument based on the principal of polar coordinates.