View source: R/set_node_attr_w_fcn.R
set_node_attr_w_fcn | R Documentation |
From a graph object of class dgr_graph
or a node data frame, set node
attribute properties for all nodes in the graph using one of several
whole-graph functions.
set_node_attr_w_fcn(graph, node_attr_fcn, ..., column_name = NULL)
graph |
A graph object of class |
node_attr_fcn |
The name of the function to use for creating a column of
node attribute values. Valid functions are: |
... |
Arguments and values to pass to the named function in
|
column_name |
An option to supply a column name for the new node
attribute column. If |
A graph object of class dgr_graph
.
Other node creation and removal:
add_n_node_clones()
,
add_n_nodes()
,
add_n_nodes_ws()
,
add_node()
,
add_node_clones_ws()
,
add_node_df()
,
add_nodes_from_df_cols()
,
add_nodes_from_table()
,
colorize_node_attrs()
,
copy_node_attrs()
,
create_node_df()
,
delete_node()
,
delete_nodes_ws()
,
drop_node_attrs()
,
join_node_attrs()
,
layout_nodes_w_string()
,
mutate_node_attrs()
,
mutate_node_attrs_ws()
,
node_data()
,
recode_node_attrs()
,
rename_node_attrs()
,
rescale_node_attrs()
,
set_node_attr_to_display()
,
set_node_attrs()
,
set_node_attrs_ws()
,
set_node_position()
# Create a random graph using the
# `add_gnm_graph()` function
graph <-
create_graph() %>%
add_gnm_graph(
n = 10,
m = 22,
set_seed = 23) %>%
set_node_attrs(
node_attr = value,
values = rnorm(
n = count_nodes(.),
mean = 5,
sd = 1) %>% round(1))
# Get the betweenness values for
# each of the graph's nodes as a
# node attribute
graph_1 <-
graph %>%
set_node_attr_w_fcn(
node_attr_fcn = "get_betweenness")
# Inspect the graph's internal
# node data frame
graph_1 %>% get_node_df()
# If a specified function takes argument
# values, these can be supplied as well
graph_2 <-
graph %>%
set_node_attr_w_fcn(
node_attr_fcn = "get_alpha_centrality",
alpha = 2,
exo = 2)
# Inspect the graph's internal
# node data frame
graph_2 %>% get_node_df()
# The new column name can be provided
graph_3 <-
graph %>%
set_node_attr_w_fcn(
node_attr_fcn = "get_pagerank",
column_name = "pagerank")
# Inspect the graph's internal
# node data frame
graph_3 %>% get_node_df()
# If `graph_3` is modified by
# adding a new node then the column
# `pagerank` will have stale data; we
# can run the function again and re-use
# the existing column name to provide
# updated values
graph_3 <-
graph_3 %>%
add_node(
from = 1,
to = 3) %>%
set_node_attr_w_fcn(
node_attr_fcn = "get_pagerank",
column_name = "pagerank")
# Inspect the graph's internal
# node data frame
graph_3 %>% get_node_df()
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