label_cooccur_igraph: Extract labels for plotting 'cooccur_igraph' object

Description

label_cooccur_igraph() returns labels for plotting cooccur_igraph object. label_cooccur_igraph gives control of overplotting for labels (i.e. character names) by deleting extra labels if there are too many of them. Thus, it highlights the most significant characters of the selected play. This function can be used to set vertex.label parameter for plot.cooccur_igraph.

Usage

label_cooccur_igraph(
  graph,
  max_graph_size = 30L,
  top_nodes = 3L,
  label_size_metric = c("betweenness", "numOfWords", "numOfScenes", "numOfSpeechActs",
    "degree", "weightedDegree", "closeness", "eigenvector")
)

Value

Character vector of character names.

Arguments

graph: cooccur_igraph object to plot.
max_graph_size: Integer, maximum network size for plotting all labels. If you don't want to delete any labels, set Inf.
top_nodes: Integer, number of labels to be plotted. Characters with the highest number of words will be selected.
label_size_metric: Character, a metric that is used to rank characters in a play.

Details

label_cooccur_igraph takes labels from a vertices data frame column "name", checks that network size is more than max_graph_size, if it is true, returns names for top top_nodes and NA for the rest.

Examples

Run this code

# \donttest{
emilia_igraph <- get_net_cooccur_igraph(
  play = "lessing-emilia-galotti",
  corpus = "ger"
)
label_cooccur_igraph(emilia_igraph, max_graph_size = 10, top_nodes = 4)
# }