proximity | R Documentation |

Compute a n by n matrix across all trees in a forest, where n is the number of rows in the data, reflecting the proportion of times two cases ended up in the same terminal node of a tree.

proximity(x, data, ...)

`x` |
An object for which a method exists. |

`data` |
A data.frame on which proximity is computed |

`...` |
Parameters passed to other functions. |

SEM Forest Case Proximity

A matrix with dimensions [i, j] whose elements reflect the proportion of times case i and j were in the same terminal node of a tree.

Caspar J. Van Lissa, 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.

`semforest`

, `semtree`

nodeids <- structure(c(9, 3, 5, 7, 10, 4, 6, 8, 9, 3, 5, 7, 10, 4, 6, 8), .Dim = c(4L, 4L)) class(nodeids) <- "semforest_node_id" sims <- proximity(nodeids) dd <- as.dist(1-sims) hc <- hclust(dd) groups <- cutree(hc, 2)

semtree documentation built on May 14, 2022, 1:05 a.m.

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