compute_centr_year: Compute eigenvector centrality up to and including a given...

Description Usage Arguments Value Examples

Description

Compute eigenvector centrality up to and including a given year

Usage

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compute_centr_year(.graph, .yr_centr_computed, .lower_boundary_yr,
  .only_active_place = F, .only_n_past_exh = NULL,
  .output_as_nodes_df = F, .set_centrality_NA_if_inactive = T)

Arguments

.graph

.graph a tbl_graph object which is a wrapper around an igraph object. In the context of this paper, the nodes are exhibition venues. These are linked by exhibition participations of artists that connect exhibition places if an artists' artwork were later shown in another exhibition venue.

.yr_centr_computed

year of interest

.lower_boundary_yr

a 4 digit number. First, .lower_boundary_yr is used to exclude edges created by exhibition participations that took place before before a given year. Removing edges from the complete network can be used to measure the eigenvector centrality of nodes in a specific time period. For example, is the Musée d'Art Moderne (Paris) which was founded earlier than most other exhibition places not only central relative to the network of 1900-2015, but also in 1980-1990? Second, .lower_boundary_yr is used to exclude nodes that show no exhibition activity before a given year (first_exh_yr <= .lower_boundary_yr). 1980, for example, will remove exhibition places which organised their first exhibition only in

.only_active

.only_active remove ties toward exhibition venues that no longer show exhibition activity. This is in line with the fact that those venues can no longer be an artist's career incident.

.remove_loops

if TRUE loops will be removed from the graph before computing eigenvector centrality

.output_as_df

return a dataframe

Value

a data frame of nodes with their eigenvector centrality and the given reference years

Examples

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g <- create_example_graph()

# compute eigenvector centrality for complete network
compute_centr_year(g, 2002)
# compute centrality for the network from 2000 up to and including 2001
compute_centr_year(g, 2001, .lower_boundary_yr = 2000)

Framus94/HierarchiesAndCareers documentation built on June 5, 2019, 8:52 a.m.