View source: R/recode_node_attrs.R
recode_node_attrs | R Documentation |
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()
,
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()
,
rename_node_attrs()
,
rescale_node_attrs()
,
set_node_attr_to_display()
,
set_node_attr_w_fcn()
,
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 = 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()
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