当前位置: 首页 > 文章 > 南岭山地立地评价有关教学模型拟合方法的初步研究 西北林学院学报 1991 (3) 41-47
Position: Home > Articles > Preliminary Study on Fitting Method of Mathematical Model for Site Quality Evaluation in Nanling Mountain Range Journal of Northwest Forestry University 1991 (3) 41-47

南岭山地立地评价有关教学模型拟合方法的初步研究

作  者:
葛宏立;蒋菊生;骆期邦
单  位:
林业部华东林业调查规划设计院
关键词:
数学模型;拟合方法;Marquardt迭代法;自变量;不等方差;多型地位指数模型
摘  要:
本文探讨了用Marquardt迭代法拟合模型时应注意的3个问题;介绍了解决方差不等问题的方法;改进了互为自变量模型的拟合方法;最后论述了多形地位指数模型的拟合。
译  名:
Preliminary Study on Fitting Method of Mathematical Model for Site Quality Evaluation in Nanling Mountain Range
作  者:
Ge Hongli(East China Institute of Forest Inventory Design) Jiang Jusheng Luo Qibang(Central South China Institute of Forest Inventory Design)
关键词:
mathematical model fitting method; Marquardt iteration;independent variable; unequal variance; polymorphic site index model
摘  要:
Discusses three problems in fitting mathematical models by Marquardt iteration and method to slove unepual variance. The fitting method of exchange independent variable with dependent variable has been improved. Finally, fitting method of developing polymorphic site index model has been demonstrated.

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