Recode a set of node attribute values
Within a graph's internal node data frame (ndf), recode character or numeric node attribute values. Optionally, one can specify a replacement value for any unmatched mappings.
recode_node_attrs( graph, node_attr_from, ..., otherwise = NULL, node_attr_to = NULL )
graph |
A graph object of class |
node_attr_from |
The name of the node attribute column from which values will be recoded. |
... |
Single-length character vectors with the recoding instructions.
The first component should have the value to replace and the second should
have the replacement value (in the form |
otherwise |
An optional single value for recoding any unmatched values. |
node_attr_to |
An optional name of a new node attribute to which the recoded values will be applied. This will retain the original node attribute and its values. |
A graph object of class dgr_graph.
Other Node creation and removal:
add_n_node_clones(),
add_n_nodes_ws(),
add_n_nodes(),
add_node_clones_ws(),
add_node_df(),
add_nodes_from_df_cols(),
add_nodes_from_table(),
add_node(),
colorize_node_attrs(),
copy_node_attrs(),
create_node_df(),
delete_nodes_ws(),
delete_node(),
drop_node_attrs(),
join_node_attrs(),
layout_nodes_w_string(),
mutate_node_attrs_ws(),
mutate_node_attrs(),
node_data(),
rename_node_attrs(),
rescale_node_attrs(),
set_node_attr_to_display(),
set_node_attr_w_fcn(),
set_node_attrs_ws(),
set_node_attrs(),
set_node_position()
# Create a random graph using the
# `add_gnm_graph()` function
graph <-
create_graph() %>%
add_gnm_graph(
n = 5,
m = 10,
set_seed = 23) %>%
set_node_attrs(
node_attr = shape,
values =
c("circle", "hexagon",
"rectangle", "rectangle",
"circle"))
# Get the graph's internal ndf
# to show which node
# attributes are available
graph %>% get_node_df()
# Recode the `shape` node
# attribute, so that `circle`
# is recoded to `square` and that
# `rectangle` becomes `triangle`
graph <-
graph %>%
recode_node_attrs(
node_attr_from = shape,
"circle -> square",
"rectangle -> triangle")
# Get the graph's internal
# ndf to show that the node
# attribute values had been recoded
graph %>% get_node_df()
# Create a new node attribute,
# called `color`, that is based
# on a recoding of `shape`; here,
# map the square shape to a `red`
# color and map all other shapes
# to a `green` color
graph <-
graph %>%
recode_node_attrs(
node_attr_from = shape,
"square -> red",
otherwise = "green",
node_attr_to = color)
# Get the graph's internal ndf
# to see the change
graph %>% get_node_df()Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.