Estimation of transformation parameters for microarray data

Estimation of transformation parameters for microarray data
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DOI:
10.1093/bioinformatics/btg178
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发表时间:
2003-07-22
期刊:
影响因子:
5.8
通讯作者:
Rocke, DM
Rocke, DM
中科院分区:
生物学3区
文献类型:
--
作者:
Durbin, B;Rocke, DM

文献摘要

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动机和结果:Durbin et al.(2002),Huber et al.(2002)和Munson(2001)独立地引入了一个变换族(广义对数族),它使微阵列数据的方差稳定到一阶。我们介绍了一种方法,用于估计转换参数与线性模型的基础上概述的程序在盒和考克斯(1964年)。我们还讨论了在广义对数族中寻找变换的方法,这些变换在其他标准下是最优的,如最小残差偏度和最小均值-方差依赖。
Motivation and Results: Durbin et al. (2002), Huber et al. (2002) and Munson (2001) independently introduced a family of transformations (the generalized-log family) which stabilizes the variance of microarray data up to the first order. We introduce a method for estimating the transformation parameter in tandem with a linear model based on the procedure outlined in Box and Cox (1964). We also discuss means of finding transformations within the generalized-log family which are optimal under other criteria, such as minimum residual skewness and minimum mean-variance dependency.