Latent variable analysis and partial correlation graphs for multivariate time series
We investigate the possibility of exploiting partial correlation graphs for identifying interpretable latent variables underlying a multivariate time series. It is shown how the collapsibility and separation properties of partial correlation graphs can be used to understand the relation between a factor model and the structure among the observable variables.
Year of publication: |
2005
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Authors: | Fried, Roland ; Didelez, Vanessa |
Published in: |
Statistics & Probability Letters. - Elsevier, ISSN 0167-7152. - Vol. 73.2005, 3, p. 287-296
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Publisher: |
Elsevier |
Keywords: | Time series analysis Dimension reduction Factor analysis Partial correlations |
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