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二、几种常用的数量分析方法(一)比较分析法比较分析法是把通过调查或试验研究所搜集的有关技术和经济资料加以整理分组,进行经济效果的对比分析。最常用的具体方法是分组对比法,平行数列对比法,动态数列对比法。对比可从多方面进行,如几种有关技术措施间经济效果的平行对比,某一技术措施对不同作物或不同地区,不同年份所取得的经济效果的平行对比等。比较分析法一般用于事后的经验总结,一般应从以下几方面进行:1、不同技术措施经济效果比较,选择最佳
Second, several commonly used quantitative analysis methods (A) Comparative Analysis Comparative analysis method is to collect the relevant technical and economic data collected by the survey or experimental research group and conduct a comparative analysis of economic effects. The most commonly used methods are group comparison, parallel comparison, and dynamic comparison. The comparison can be made from various aspects, such as the parallel comparison of the economic effects among several related technical measures, the parallel comparison of economic effects achieved by different technical measures for different crops or different regions and different years. The comparative analysis method is generally used to summarize the experience afterwards. It should generally be carried out in the following aspects: 1. Comparison of economic effects of different technical measures and selection of the best