Results of linear structural relation model based on covariance matrix showed that psychological factors affected the development of NIDDM not only directly but also indirectly.
用协方差矩阵配合模型的结果显示,精神因素对糖尿病的患病状况不仅有直接影响,同时也有间接影响。
2
By the analysis of airborne gravity measurement data, this paper constructs a space covariance function model with spatial characteristics.
本文通过对航空重力测量数据的分析,建立起具有空间相关特性的空间协方差函数模型。
3
Adaptive fittings for both the systematic errors and covariance matrices of the model errors by using moving Windows are presented.