基于主成分分析的食品价格影响因素研究
A Study on the Influencing Factors to Food Price Based on Principal Component Analysis
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摘要: 通过构建食品价格影响因素的评价指标体系,运用主成分分析法对2001-2009年度的食品价格影响因素进行研究,得到了三个主成分因子。根据主成分计算出各年度的食品价格综合得分并排序,发现食品价格在这九年里呈现出波浪线形式的变化。Abstract: By establishing the evaluation index system of the affecting factors to food prices, and using the principal component analysis to study the affecting factors to food prices in the year 2001-2009, three principal components are obtained. According to the principal components, the paper calculated and sorted composite score for each year's food prices, and found that food price shows a change in the form of wavy line in the nine years.