Returns a table of standard errors with columns corresponding to freely estimated standard errors and rows corresponding to nodes in the tree.

se(tree, leafs.only = TRUE)

Arguments

tree

A SEMtree object obtained from semtree

leafs.only

Default = TRUE. Only the terminal nodes (leafs) are printed. If set to FALSE, all node standard errors are written to the data.frame.

Value

Returns a data.frame with rows for parameters and columns for terminal nodes.

Details

The row names of the resulting data frame correspond to internal node ids and the column names correspond to standard errors in the SEM. Parameter estimates can be obtained from parameters.

References

Brandmaier, A.M., Oertzen, T. v., McArdle, J.J., & Lindenberger, U. (2013). Structural equation model trees. Psychological Methods, 18(1), 71-86.

Author

Andreas M. Brandmaier, John J. Prindle