Within a graph's internal edge data frame (edf), copy the contents an existing edge attribute and create a distinct edge attribute within the edf with a different attribute name.
Arguments
- graph
A graph object of class
dgr_graph.- edge_attr_from
The name of the edge attribute column from which values will be copied.
- edge_attr_to
The name of the new edge attribute column to which the copied values will be placed.
See also
Other edge creation and removal:
add_edge(),
add_edge_clone(),
add_edge_df(),
add_edges_from_table(),
add_edges_w_string(),
add_forward_edges_ws(),
add_reverse_edges_ws(),
create_edge_df(),
delete_edge(),
delete_edges_ws(),
delete_loop_edges_ws(),
drop_edge_attrs(),
edge_data(),
join_edge_attrs(),
mutate_edge_attrs(),
mutate_edge_attrs_ws(),
recode_edge_attrs(),
rename_edge_attrs(),
rescale_edge_attrs(),
rev_edge_dir(),
rev_edge_dir_ws(),
set_edge_attr_to_display(),
set_edge_attrs(),
set_edge_attrs_ws()
Examples
# Create a random graph using the
# `add_gnm_graph()` function
graph <-
create_graph() %>%
add_gnm_graph(
n = 5,
m = 8,
set_seed = 23) %>%
set_edge_attrs(
edge_attr = color,
values = "green")
# Get the graph's internal
# edf to show which edge
# attributes are available
graph %>% get_edge_df()
#> id from to rel color
#> 1 1 1 3 <NA> green
#> 2 2 2 1 <NA> green
#> 3 3 2 5 <NA> green
#> 4 4 2 3 <NA> green
#> 5 5 3 2 <NA> green
#> 6 6 3 5 <NA> green
#> 7 7 3 4 <NA> green
#> 8 8 5 3 <NA> green
# Make a copy the `color`
# edge attribute as the
# `color_2` edge attribute
graph <-
graph %>%
copy_edge_attrs(
edge_attr_from = color,
edge_attr_to = color_2)
# Get the graph's internal
# edf to show that the edge
# attribute had been copied
graph %>% get_edge_df()
#> id from to rel color color_2
#> 1 1 1 3 <NA> green green
#> 2 2 2 1 <NA> green green
#> 3 3 2 5 <NA> green green
#> 4 4 2 3 <NA> green green
#> 5 5 3 2 <NA> green green
#> 6 6 3 5 <NA> green green
#> 7 7 3 4 <NA> green green
#> 8 8 5 3 <NA> green green