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Sample Selection Model with Bootstrap (BPSSM) Approach: Case Study of the Malaysian Population and Family Survey
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作者 Muhamad Safiih Lola Wan Saliha Wan Alwi Nurul Hila Zainuddin 《Open Journal of Statistics》 2016年第5期741-748,共8页
Heckman Sampel Selection Model (PSSM) has been adopted widely in the study of labour work. This model contains exogenous, endogenous and standard error variables. However, this model is constantly exposed to high inac... Heckman Sampel Selection Model (PSSM) has been adopted widely in the study of labour work. This model contains exogenous, endogenous and standard error variables. However, this model is constantly exposed to high inaccuracy of estimation result. Therefore, to obtain an accurate and precise estimation, the bootstrap approach is introduced. The bootstrap approach will be hybrid with PSSM model known as BPSSM to achieve estimation result that is more precise. Then, the BPSSM is applied to Malaysian Population and Family Survey 1994 (MPFS-1994) data. The results showed that BPSSM provide a smaller standard error and shorter confidence intervals. 展开更多
关键词 sampel Selection BOOTSTRAP Standard Error Confidence Intervals
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用有序样品聚类法探讨哲盟地区蒙古族儿童血压的体重分期
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作者 佟伟军 刘永跃 +2 位作者 王富昌 张永红 赵宏林 《中国公共卫生学报》 1992年第3期145-148,共4页
本文试用有序样品聚类的方法,对本地区2547名4~14岁正常蒙古族儿童血压的体重分布进行了聚类分析,即划分最优体重段。分析结果表明,本地区4~14岁蒙古族儿童血压的体重分布划分为5个体重段最优。本文认为此5个体重段的血压值,可作为本... 本文试用有序样品聚类的方法,对本地区2547名4~14岁正常蒙古族儿童血压的体重分布进行了聚类分析,即划分最优体重段。分析结果表明,本地区4~14岁蒙古族儿童血压的体重分布划分为5个体重段最优。本文认为此5个体重段的血压值,可作为本地区4~14岁蒙古族正常儿童血压的参考值标准。 展开更多
关键词 血压 儿童 有序样品聚类
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地学样品分析测试技术的现状和趋势
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作者 王心坦 卫东萍 虞承伟 《山西冶金》 CAS 2000年第2期9-10,26,共3页
综述了地学样品分析方面的13种测试技术的现状,提出了今后的必然发展趋势。
关键词 地学样品 测试技术 发展趋势 活化分析 质谱分析
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