| 应用稳健主成分分析研究欧亚大陆早侏罗世植物区系分区 |
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| 引用本文： | 林和平,孙春林,苑清扬.应用稳健主成分分析研究欧亚大陆早侏罗世植物区系分区[J].吉林大学学报(地球科学版),1993(2). |
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| 作者姓名： | 林和平 孙春林 苑清扬 |
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| 作者单位： | 长春地质学院计算中心
(林和平)，长春地质学院教务处
(孙春林)，长春地质学院数学地质研究所(苑清扬) |
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| 摘 要： | 应用稳健主成分分析研究欧亚大陆早侏罗世植物区系划分尚属首次试验。取前三个特征值所对应的特征向量定量化地解释了每个植物群的植物组合在经向上的变化规律。应用稳健主成分分析的样品得分定量化地标度了早侏罗世的四个植物区系,证实了四个植物区系的存在,并解释了每个植物群组合之间的关系。
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| 关 键 词： | 稳健主成分分析 植物区系划分 欧亚大陆 早侏罗世 |
THE APPLICATION OF ROBUST PRINCIPAL COMPONENT ANALYSIS TO EARLY JURASSIC FLORISTIC DIVISION OF EURASIA CONTINENT |
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| Lin Hoping.THE APPLICATION OF ROBUST PRINCIPAL COMPONENT ANALYSIS TO EARLY JURASSIC FLORISTIC DIVISION OF EURASIA CONTINENT[J].Journal of Jilin Unviersity:Earth Science Edition,1993(2). |
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| Authors: | Lin Hoping |
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| Institution: | Lin Hoping(Computer Center)Sun Chunlin Yuan Qingyang(Education office) (Institute of Mathematical Geology) |
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| Abstract: | This is the first time to use the Robust principal component analysis method in studying the early Jurassic floristic division of Eurasia continent.In this articl, the interpretation of the longitudinal variation of the plant assemblages of each flora by using the corresponding cigcn vectors of the first three cigcn values is given.Using the core of samples of Robust principle component analysis, we quantitatively scale the early Jurassic palcofloristic province, which shows that there arc four palcofloris-tic province in that time, and also we have discussed the ralationships among the plant assemblages of each flora.Finaly, it is thought from our view that this method about palcofloristical studying has a great deel of advantage of application in the future. |
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| Keywords: | Robust principal component analysis floristic division |
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