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变异函数的拟合是目前地质统计学在推广应用过程中遇到的一个障碍。本文分析了最小二乘拟合变异函数所存在的问题,提出用线性规划法,在ΣP|v|=min条件下,自动拟合变异函数。这种方法可以有效地控制模型参数,保证得到与区域化变量理论一致的结果,并且能较好地体现实验变异函数的总体趋势而不受个别异常值的影响。根据这种方法的原理,可编出为普通地质人员掌握的通用程序。
The fitting of the variogram is an obstacle in the application of geostatistics. In this paper, the problems existing in the least-squares fitting variogram are analyzed. The linear programming method is proposed to automatically fit the variogram function with ΣP | v | = min. This method can effectively control the parameters of the model to ensure that the results consistent with the theory of regional variables, and can better reflect the overall trend of experimental variability without being affected by individual outliers. According to the principle of this method, can be compiled for general geology staff to grasp the general procedure.