These functions add some format to manynet-consistent data.
to_directed() reformats undirected network data to a directed network.
to_redirected() reformats the direction of directed network data, flipping any existing direction.
to_reciprocated() reformats directed network data such that every directed tie is reciprocated.
to_acyclic() reformats network data to an acyclic graph.
to_named() reformats unlabelled network data to labelled network data
from a vector of names or random baby names.
to_signed() reformats unsigned network data to signed network data
with signs from a mark vector or at random.
If the format condition is not met,
for example to_undirected() is used on a network that is already undirected,
the network data is returned unaltered.
No warning is given so that these functions can be used to ensure conformance.
Unlike the as_*() group of functions,
these functions always return the same class as they are given,
only transforming these objects' properties.
to_named(.data, names = NULL)
to_signed(.data, mark = NULL)
to_weighted(.data, measure = NULL)An object of a manynet-consistent class:
matrix (adjacency or incidence) from {base} R
edgelist, a data frame from {base} R or tibble from {tibble}
igraph, from the {igraph} package
network, from the {network} package
tbl_graph, from the {tidygraph} package
Character vector of the node names. NULL by default.
A mark (logical vector) the length of the ties in the network.
A numeric vector (measure) that will be added as the tie weights to the network. If this is NULL, then the tie weights will be drawn from a Poisson distribution with \(\lambda = 4\).
All to_ functions return an object of the same class as that provided.
So passing it an igraph object will return an igraph object
and passing it a network object will return a network object,
with certain modifications as outlined for each function.
Not all functions have methods available for all object classes. Below are the currently implemented S3 methods:
| data.frame | igraph | matrix | network | tbl_graph | |
| to_acyclic | 1 | 1 | 1 | 1 | 1 |
| to_directed | 1 | 1 | 1 | 1 | 1 |
| to_named | 1 | 1 | 1 | 1 | 1 |
| to_reciprocated | 1 | 1 | 1 | 1 | 1 |
| to_redirected | 1 | 1 | 1 | 1 | 1 |
| to_simplex | 0 | 1 | 1 | 0 | 1 |
Other modifications:
manip_as,
manip_correlation,
manip_deformat,
manip_from,
manip_levels,
manip_miss,
manip_nodes,
manip_paths,
manip_permutation,
manip_project,
manip_reformat,
manip_scope,
manip_split,
manip_ties