摘要
检测实验室能力验证计划结果处理时,常用稳健统计技术对试验数据进行统计分析和评价。稳健统计技术涉及到标准四分位数间距、四分位数的计算。四分位数在具体的计算过程中出现多个版本的计算模型,从而导致能力验证活动结果的不唯一,影响能力验证活动的公正性。分析了具有代表性的4种四分位数计算模型,依据现有的能力验证活动的成功案例,提出模型二适用于检测实验室能力验证计划的结果评价,可以统一采用。
Robust statistical techniques are commonly used to conduct statistical analysis and evaluation on the experimen- tal data. This method involves the calculation of the normalised interquartile range and quartile. There are different calcu- lating models used tbr quartiles calculation. Different computational models cause different results which affect the labora- tory proficiency test to keep impartiality. The four typical quartile calculation models are analyzed. Based on the success- ful cases of the existing proficiency test activities, model 2 is suitable for applying on the laboratory proficiency test schemes.
出处
《物理测试》
CAS
2014年第4期58-61,共4页
Physics Examination and Testing
基金
浙江省质量技术监督系统科研计划资助项目(20120337)
关键词
稳健统计技术
标准四分位数间距
四分位
robust statistical technique
normalised interquartile range
quartile
