| 两组变量的直线或曲线拟合 |
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| 引用本文： | 朱家钰. 两组变量的直线或曲线拟合[J]. 辽宁工程技术大学学报(自然科学版), 1989, 0(2) |
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| 作者姓名： | 朱家钰 |
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| 作者单位： | 阜新矿业学院矿测教研室 |
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| 摘 要： | 根据广义最小二乘法原理,用直线或曲线去拟合两组变量.提出的新方法;视两组观测值均为具有误差的变量.更为切合实际.所求出的参数估值为无偏估值.
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| 关 键 词： | 经验方程 广义最小二乘法 直线拟合 曲线拟合 间接平差 矩阵 |
STRAIT LINE FITTING AND CURVE FITTING WHEN TWO SETS OF OBSERVATIONS ARE TAKEN AS VARIABLES |
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| Zhu Jiayu. STRAIT LINE FITTING AND CURVE FITTING WHEN TWO SETS OF OBSERVATIONS ARE TAKEN AS VARIABLES[J]. Journal of Liaoning Technical University (Natural Science Edition), 1989, 0(2) |
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| Authors: | Zhu Jiayu |
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| Abstract: | In this paper general least squares methad is used to fit strait line or curve and two sets of observations are taken as variables. In the past the empiric formula was found with conventional method which assumed that in two sets of observations one set were constants and another set were variables. The author presents a new method that treats both of two sets of observations as variables.This method is geared to reality and the estimates of unknown parameters found with this method are unbiassed estimates. |
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| Keywords: | empiric formula general leas t squares method strait line fitting curve fitting adjust of indiret observations matrix |
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