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Results tagged with hierarchical-clustering
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user 313046
Hierarchical cluster analysis is a method of cluster analysis which builds, by steps, a hierarchy of clusters, a dendrogram. Most popular is agglomerative hierarchical clustering (HAC) which starts from individual objects and collects them into bigger and bigger clusters.
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Modelling strategies for analyzing an effect of a predictor through higher hierarchical level
Regarding the first point
A model like this gives biased result due to unmeasured confounding (unavailable variables): e.g. very sick patients are excluded from rehabilitation and very fit patients d …
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