A LINEAR COMPOSITE METHOD FOR TEST SCORES WITH MISSING VALUES
A LINEAR COMPOSITE METHOD FOR TEST SCORES WITH MISSING VALUES
批准号:
10680315
负责人:
SHIBAYAMA Tadashi
金额:
$1.22万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (C)
财政年份:
1998
资助国家:
日本
项目状态:
已结题
起止时间:
1998 至 1999
中文摘要
本文提出了一种不完全数据的线性复合方法。该方法基于最小二乘准则,可以在允许变量均值差异的情况下使个体差异最大化的情况下解析求解。如果数据矩阵是完整的,则该方法相当于普通的主成分分析法。通过仿真实验验证了该方法的有效性。
英文摘要
Here I present a linear composite method for incomplete data. The method is based on the least squares criterion and can obtain solutions analytically in such a way that is individual differences are maximized allowing for differences between means of variables. If a data matrix is complete, the method is equivalent to ordinary PCA. A simulation study is given in order to demonstrate the efficacy of the method.
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