Derived variables for longitudinal studies
收藏PubMed Central1999-10-26 更新2026-04-25 收录
下载链接：
https://pmc.ncbi.nlm.nih.gov/articles/PMC22906/
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资源简介：
Suppose that for each individual a vector of features is measured at a number of time points. We look for a transformation of the features, the same at all time points, that will induce a simple dependency structure. In the simplest situation this requires that a certain asymmetric matrix has real nonzero eigenvalues. Extensions are considered.
提供机构：
National Academy of Sciences
创建时间：
1999-10-26
