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- W2017004649 abstract "정준상관 행렬도는 두 변수군 사이에 연관성이 있는 데이터 행렬을 시각적으로 묘사하고 데이터가 가진 패턴을 찾는데 유용하고, 분석의 더욱 정형화된 방법으로써 결과를 보여주기에도 유용하다. 그럼에도 불구하고, 자료에 결측값이 존재하는 경우에 대부분의 행렬도는 바르게 적용되지 않는다. 이 문제를 해결하기 위해, 결측률에 따라 중앙값과 평균, EM알고리즘, MCMC대체법을 사용해서 결측 자료를 추정한다. 완전하지 않은 자료의 행렬도의 결측값을 추정하더라도, 대체법과 결측률에 따라 행렬도의 모양이 달라진다. 따라서 Shin 둥 (2008)에서 제안한 RMS(root mean square)와 원 행렬도와 추정된 행렬도간의 형상 변동을 측정하고 비교하기 위한 PS(Procrustes statistic)를 사용한다. Canonical correlation biplot is a useful biplot for giving a graphical description of the data matrix which consists of the association between two sets of variables, for detecting patterns and displaying results found by more formal methods of analysis. Nevertheless, when some values are missing in data, most biplots are not directly applicable. To solve this problem, we estimate the missing data using the median, mean, EM algorithm and MCMC imputation methods according to missing rates. Even though we estimate the missing values of biplot of incomplete data, we have different shapes of biplots according to the imputation methods and missing rates. Therefore we use a RMS(root mean square) which was proposed by Shin et al. (2007) and PS(procrustes statistic) for measuring and comparing the shape variability between the original biplots and the estimated biplots." @default.
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- W2017004649 date "2010-10-31" @default.
- W2017004649 modified "2023-09-25" @default.
- W2017004649 title "A Study on Shape Variability in Canonical Correlation Biplot with Missing Values" @default.
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- W2017004649 doi "https://doi.org/10.5351/kjas.2010.23.5.955" @default.
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