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目的研究住院医疗费用结构的变动规律,为制定医疗费用结构控制措施提供理论依据。方法采用球坐标变换方法,拟合和预测医疗费用结构数据。结果拟合的效果误差不大,回归效果很好。结论本文所述的球坐标变换方法在医疗费用结构等成分数据的研究中有较好的应用前景。
Objective To study the changes of hospitalization fee structure and to provide a theoretical basis for the development of medical cost structure control measures. Methods The spherical coordinate transformation method was used to fit and predict the medical cost structure data. The results of the fitting error is small, the regression effect is very good. Conclusion The spherical coordinate transformation method described in this paper has a good application prospect in the study of compositional data such as medical cost structure.