View source: R/add_graph_action.R
add_graph_action | R Documentation |
Add a graph function along with its arguments to be run at every graph transformation step.
add_graph_action(graph, fcn, ..., action_name = NULL)
graph |
A graph object of class |
fcn |
The name of the function to use. |
... |
Arguments and values to pass to the named function in |
action_name |
An optional name for labeling the action. |
A graph object of class dgr_graph
.
# Create a random graph using the
# `add_gnm_graph()` function
graph <-
create_graph() %>%
add_gnm_graph(
n = 10,
m = 22,
set_seed = 23)
# Add a graph action that sets a node
# attr column with a function; the
# main function `set_node_attr_w_fcn()`
# uses the `get_betweenness()` function
# to provide betweenness values in the
# `btwns` column; this action will
# occur whenever there is a function
# called on the graph that modifies it
# (e.g., `add_n_nodes()`)
graph <-
graph %>%
add_graph_action(
fcn = "set_node_attr_w_fcn",
node_attr_fcn = "get_betweenness",
column_name = "btwns",
action_name = "get_btwns")
# To ensure that the action is
# available in the graph, use the
# `get_graph_actions()` function
graph %>% get_graph_actions()
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