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| 基于主成分和聚类分析的烤烟化学品质综合评价 | |
| 引用本文： | 李国栋,胡建军,周冀衡,唐大新.基于主成分和聚类分析的烤烟化学品质综合评价[J].烟草科技,2008(12). |
| 作者姓名： | 李国栋 胡建军 周冀衡 唐大新 |
| 作者单位： | 1. 河南中烟工业公司技术中心,郑州市陇海路72号,450004 2. 湖南农业大学烟草工程技术研究中心,长沙市芙蓉区,410128;中国烟草总公司职工技术培训中心,郑州市北林路7号,450011 3. 湖南农业大学烟草工程技术研究中心,长沙市芙蓉区,410128 4. 广西中烟工业公司品质保障部,南宁市北湖路28号,530001 |
| 摘 要： | 为对烤烟化学品质进行综合评价,应用DPS数据处理系统软件,对53个烤烟样本的13项化学指标进行主成分分析,按累积贡献率90%提取6个主成分,求得烤烟样本的6个主成分得分及综合得分,并对综合得分以欧氏距离为衡量烟叶样本间差异大小的指标,采用重心法进行系统聚类,再按距离系数0.3截取,将53个烟叶样本分为5类。结果表明:第1类综合化学品质最好,其综合得分≥1.34;第2类综合化学品质较好,其综合得分为0.50～0.93;第3类综合化学品质中等,其综合得分为0.00～0.44;第4类综合化学品质稍差,其综合得分为0.20～-0.79;第5类综合化学品质差,其综合得分≤-0.91。 |
| 关 键 词： | 烤烟 化学成分 品质 综合评价 主成分分析 聚类分析 |
Comprehensive evaluation of flue-cured tobacco chemical quality based on principal component analysis and cluster analysis |
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| LI GUO-DONG,HU JIAN-JUN,ZHOU JIH-ENG,TANG DA-XIN.Comprehensive evaluation of flue-cured tobacco chemical quality based on principal component analysis and cluster analysis[J].Tobacco Science & Technology,2008(12). | |
| Authors: | LI GUO-DONG HU JIAN-JUN ZHOU JIH-ENG TANG DA-XIN |
| Abstract: | In order to evaluate the chemical quality of flue-cured tobacco comprehensively,the contents of 13 chemical components in 53 flue-cured tobacco samples were analyzed by principal component analysis with DPS (data processing system) software. Six principal components with accumulative contribution rate over 90% were obtained,also obtained were the scores of the six principal components and comprehensive scores of the tobacco samples. The Euclidian distance between the comprehensive scores was taken as a meas... |
| Keywords: | Flue-cured tobacco Chemical component Quality Comprehensive evaluation Principal component analysis Cluster analysis |
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