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Fig. 1 | BMC Psychiatry

Fig. 1

From: Machine learning methods to predict child posttraumatic stress: a proof of concept study

Fig. 1

Flowchart for cross validation. a The 5-fold cross validation process. The widths of the rectangular data boxes represent the dimension of features. The heights of the rectangular data boxes represent the dimension of subjects. An orange rectangular data box represents a testing data set. b A simple example of Causal Network. Node T represents the “target” (i.e. response variable); Nodes P represent parents of target; Nodes C represent children of the target; Node S represents spouse of target. MB is the Markov Blanket comprising parents, children and spouse; PC is the parents and children set. For details please see text (c) 5-fold cross validation process with Feature Selection

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