get_edge_count_w_multiedge {DiagrammeR} | R Documentation

## Get count of edge definitions where multiple edges occur

### Description

Get a count of the number of edge definitions (e.g, '1' -> '2') where there are multiple edges (i.e., more than 1 edge of that definition, having distinct edge ID values). So, for example, if there are 2 edge definitions in the graph that involve 6 separate edge IDs (3 such edge IDs for each of the pairs of nodes), the count will be `2`.

### Usage

    get_edge_count_w_multiedge(graph)

### Arguments

`graph` | a graph object of class `dgr_graph`.

### Value

a vector with a single, numerical value.

### Examples

    # Create a node data frame (ndf)
    ndf <-
      create_node_df(
        n = 5,
        label = TRUE)

    # Create an edge data frame (edf)
    edf <-
      create_edge_df(
        from = c(1, 4, 4, 3, 5, 1, 3, 4),
          to = c(4, 1, 1, 2, 2, 2, 2, 1))

    # Create a graph with the ndf and edf
    graph <-
      create_graph(
        nodes_df = ndf,
        edges_df = edf)

    # Get the total number of edge
    # definitions (e.g., `4` -> `1`) where
    # there are multiple edges (i.e.,
    # distinct edges with separate edge
    # ID values)
    get_edge_count_w_multiedge(graph)
    #> [1] 2

[Package DiagrammeR version 0.9.2 Index]