样品与变量双重信息图的优点——以产品顾客偏好对应分析为例

The Advantages of Bi-plot for Viewing Sampling Units and Variables——An Example of Correspondence Analysis on Customer Preference to Products

目前使用较多的由法国统计学家J.P.Beozecri提出的对应分析法,存在意义不明确、方向不清晰的缺陷。在对国内较少使用的双重信息图进行整理的基础上,给出了双重信息图的一个分类标准、调整乘子、实证步骤,该方法的优点是:对应分析意义明确、方向清晰,尤其适合样品点和变量点较多的对应分析。将此方法应用于国际轿车市场趋向和新产品开发趋向的研究实例中,结论具有确定性和决策相关性。

The widely used correspondence analysis of the French statistician J. P. Beozecri＇ s method doesn＇t have clear meaning, and the direction is also unclear. The author studies the biplot and give out the classification criterion, adjustment operator and practical steps of the plot. The advantages of the method are： Correspondence analysis has clearer meaning and direction, especially for correspondence analysis with large sample and large amount of variables. In the application of international used car market trend, new product development trends analysis, the conclusion is in- depth and fruitful and decision- making relevant.