Regression diagnosis is an important part of modern statistics analysis.
回归诊断是现代统计分析的重要组成部分。
Objective: the purpose of this study was to compare the performance of regression on order statistics(ROS) and substitution methods in estimation of nondetects.
目的:比较用于处理包含未检出值的痕量测定数据的次序统计量回归方法与经典替换方法的估计效果。
Methods: Four factors quadratic regression rotation combination design and agricultural biological statistics were applicated.
方法采用四因素二次回归正交旋转组合设计和生物统计方法。
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