View of the current selection of forecasting models in order to minimize the fitting error, a method of selecting forecast model was put forward based on minimum error of forecast.
针对目前以拟合精度作为模型选择标准的方法，提出了以预测值的置信区间最小为标准选择预测模型的方法。
In this method, the measuring sensitivity can be varied by selecting different grating constam or diffraction order. This method can be applied to polished surfaces and rough surfaces as well.
这种方法可通过选择不同的光栅常数或衍射级来改变测量的灵敏度，可测量抛光的表面，也可测量粗糙的表面。
The new method overcame the deficiency of artificially selecting the truncated functions in the classical low order spectral model.
克服了应用低阶谱模式研究物理现象时选取截断函数时的主观任意性。
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