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Similarity between training and hold-out CPDAGs. Note: training sample (n = 21,899); hold-out sample (n = 9,386). CPDAG = completed partially directed acyclic graph. Green arrows = true positives; Red arrows = false positives; SHD = structural hamming distance. SHD assesses the similarity between two CPDAGS and represents the number of edge insertions, deletions or flips to transform one graph to another graph. Lower SHD values represent higher similarity
