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| 林分生长模型建立方法 | |
| 引用本文： | 陈绍安,张快富. 林分生长模型建立方法[J]. 林业调查规划, 2009, 34(6): 19-21. DOI: 10.3969/j.issn.1671-3168.2009.06.006 |
| 作者姓名： | 陈绍安 张快富 |
| 作者单位： | 云南省林业科学院普文热带林业研究所,云南景洪,666102 |
| 摘 要： | 在林分生长模型建立中，通过分析变量间的显著影响选择变量．研究模型的评价与检验指标等方法，为建立优选模型提供参考．文中对最小二乘拟合模型中的异方差和多重共线性问题进行了分析，提出了加权最小二乘法、逐步回归剔除法等处理方法． |
| 关 键 词： | 林分生长模型 最小二乘法 异方差 多重共线性 |
Study on Method for Establishing Stand Growth Model |
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| CHEN Shao-an,ZHANG Kuai-fu. Study on Method for Establishing Stand Growth Model[J]. Forest Inventory and Planning, 2009, 34(6): 19-21. DOI: 10.3969/j.issn.1671-3168.2009.06.006 | |
| Authors: | CHEN Shao-an ZHANG Kuai-fu |
| Affiliation: | ( Puwen Tropical Forestry Institute of Yunnan Academy of Forestry,Jinghong Yunnan 666102, China) |
| Abstract: | The variables in stand growth model were selected through analyzing the significant influences among the variables. The model evaluation and test index of stand growth model were studied. Heteroskedasticity and muhicollinearity in least squares regression were analyzed, weighted least square method and stepwise regression elimination method were proposed for the establishment of stand growth model. |
| Keywords: | stand growth model least square heteroskedasticity muhicollinearity |
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