利用SAS软件计算穗部性状的最优线性无偏估计值（BLUP）， 并采用完备区间作图法进行QTL定位。
With the BLUP value estimated by SAS software, QTLs for ear architectural traits were detected by inclusive composite interval mapping (ICIM) using Windows QTL ICI-Mapping software.
仿真实验结果表明：新的仿真方法改善了仿真数学模型的形式，并且利用经验值估计区间的参数优化法大大地提高了运算效率。
The simulation results express that the new simulation method improves simulation mathematical model, and the estimate zone method enhances the operation efficiency.
方法在双正态模型基础下应用ML估计方法计算ROC曲线下面积，正态近似法估计面积的可信区间及假设检验。
Methods On the basis of binormal model, maximum likelihood estimation was applied to areas calculation, and approximately normal method to confidence interval estimation and hypothesis test.
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