建模中的探索性数据分析

Exploratory Data Analysis in Modeling

  • 摘要: 该文以眼科病床的合理安排问题为分析背景,展示了用SPSS软件进行探索性数据分析的全过程,为建模过程中的许多假设和结论找到依据。对术前观察时间进行频率统计发现,白内障病人等待手术时间太久。构建交叉表发现入院FCFS规则与院方规定“周一周三做白内障手术”的时间一直存在冲突,这是造成病床利用率低下的关键。

     

    Abstract: In this paper, based on the reasonable arrangement of Ophthalmology sickbeds, the whole process of the exploratory data analysis using statistic package for social science (SPSS) is presented, which can be used as a basis for many assumptions and conclusions in the modeling process Frequency statistic of preoperative observation time showed that the waiting time of cataract patients is too long The constructed cross-table analysis shows that there is a conflict between the hospital admission first come,first served (FCFS)rule and the provisions of " Monday and Wednesday to do cataract surgery " , which is the main factor leading to low utilization sickbeds

     

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