Based on the analyzing of costs sample of equipment, set up prediction model of economic life of equipment, considering the middle-linear regression method and period value of costs.
通过对设备费用样本的分析，采用了中间线性回归方法和考虑了货币的时间价值，建立了符合缺省数据费用样本的设备经济寿命预测模型。
This paper presents beef freshness spline regression model according to beef sample, and carries out regression analysis for this model.
针对牛肉样本建立了牛肉新鲜度样条回归模型，并对该模型进行了回归分析。
Cross-validation of foreign N-EX regression model with the present sample results in higher SE1 values, which shows N-EX regression model is not fit for domestic people.
本研究样本交叉核实国外预测最大摄氧量N-EX回归模型，SE1值较高，说明国外预测最大摄氧量N-EX回归模型不适合我国人群。
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