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Figure 2 | BMC Medical Research Methodology

Figure 2

From: Imputation of a true endpoint from a surrogate: application to a cluster randomized controlled trial with partial information on the true endpoint

Figure 2

Directed Acyclic Graph of the full likelihood model. In the graph circles represent unknown parameters and rectangles represent observed data. Dashed arrows represent deterministic dependence and solid arrows represent stochastic dependence. A dashed rectangle represents data that is partially observed, and is imputed (so a parameter) for missing values.

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