讨论用QR分解拟合回归方程时，参数估计和剩余的迭代加细算法。
Algorithms for iteratively refining the parameter estimates and residuals from the fitting of a regression model using QR decomposition are described.
编制了程序，能自动拟合回归方程。并进行方差分析和回归效果的显著性检验；
The program designed may imitate the . regression equation automatically, engage in variance analysis and significance test for regression effects.
把电学量传感器测量物理量的范围，平分二段，分别建立拟合回归方程，并用电路实现之。
The measuring range of electric quantity sensor is divided into two parts, the regressive equations are respectively set up and realized it using circuits.
此外，用相关指数来检验曲线回归方程的拟合程度，而不采用在类似的研究中用相关系数来检验曲线回归这一不合适的方法。
Moreover, the fitting degree of curvilinear regression equation is tested by correlation index, in stead of correlation coefficient which has been unsuitably used for testing in similar works.
土壤入渗过程的回归方程表现为乘幂函数形式，回归系数R在0.88 ~ 0.99之间，方程拟合效果较好。
Soil permeability coefficients regression equation performs exponent relation. Regression coefficients were between 0.88 to 0.99, and the equation analog effect was good.
并拟合出回归方程估算品种耐弱光性。
At last, we deduce a regression equation to evaluate the low light tolerance.
这表明，筛选拟合的树高——年龄导向曲线回归方程很好地拟合了样本资料，很好地反映了树高的生长过程。
As showed the curve regression equations of tree height-age relations matched the sample data nicely and reflected the trees' grown process nicely.
这表明，筛选拟合的树高——年龄导向曲线回归方程很好地拟合了样本资料，很好地反映了树高的生长过程。
As showed the curve regression equations of tree height-age relations matched the sample data nicely and reflected the trees' grown process nicely.
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