evaluateTree | R Documentation |
A helper function to evaluate the negative two log-likelihood (-2LL) of leaf (terminal) nodes for a
dataset. When given a semtree
and a unique dataset, the model
estimates -2LL for the tree parameters and data subsets that fit the tree
branching criteria.
evaluateTree(tree, test_set, data_type = "raw", leaf_ids = NULL)
tree |
A fitted |
test_set |
Dataset to fit to a fitted |
data_type |
type of data ("raw", "cov", "cor") |
leaf_ids |
Identifies which nodes are leaf nodes. Default is NULL, which checks model for leaf nodes and fills this information in automatically. |
A list with two elements:
deviance |
Combined -2LL for leaf node models of the tree. |
num_models |
Number of leaf nodes used for the deviance calculations. |
Andreas M. Brandmaier, John J. Prindle
Brandmaier, A.M., Oertzen, T. v., McArdle, J.J., & Lindenberger, U. (2013). Structural equation model trees. Psychological Methods, 18(1), 71-86.
evaluateDataLikelihood
, semtree
,
semforest
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