get_middle_nodes: Obtain the middle nodes of a path

In rsemmed: An interface to the Semantic MEDLINE database

Description

For each pair of source and target nodes in object, obtain the names of middle nodes on paths.

Usage

get_middle_nodes(graph, object, collapse = TRUE)

Arguments

graph	The SemMed graph
object	A vertex sequence (igraph.vs), a list of vertex sequences, or a list of vertex sequence lists
collapse	If TRUE, middle node names for different source-target pairs are combined into one character vector.

Value

A tbl where each row corresponds to a source-target pair in object. The last column is a list-column containing character vectors of names of middle nodes.

Examples

data(g_mini)

node_cortisol <- find_nodes(g_mini, "Serum cortisol")
node_stress <- find_nodes(g_mini, "Chronic Stress")
paths <- find_paths(g_mini, from = node_cortisol, to = node_stress)
middle <- get_middle_nodes(g_mini, paths)

rsemmed documentation built on Nov. 8, 2020, 5:32 p.m.