In this paper we discuss conjugate direction method for LS estimator and analyse error of iterative solution.
本文讨论了求ls估计的共轭方向法，对迭代解的误差进行了分析。
The computational results demonstrate that the partial root root estimator can improve the LS estimator when the design matrix is ill conditioned.
计算结果表明，在设计阵呈病态时，部分根方估计确能改善LS估计。
The LS-estimator in nonlinear regression problems is an important statistical estimator problem.
非线性回归的LS估计问题是一类重要的统计问题。
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