These functions take a character vector of 'sparse6' symbols and return a list of other types of objects:
edgelist_from_sparse6()creates edgelist matrices
igraph_from_sparse6()creates 'igraph' objects. Requires package igraph to be installed.
network_from_sparse6()creates 'network' objects. Requires package network to be installed.
Value
The returned object is:
for
edgelist_from_sparse6(), a list of the same length as its input of two-column edgelist matrices. The matrix has agorderattribute storing the number of vertices in the graph.
for
igraph_from_sparse6(), a list of 'igraph' objects
for
network_from_sparse6(), a list of 'network' objects
See also
as_sparse6() for encoding network data objects as 'sparse6'
symbols.
Examples
elm <- structure(c(1, 1, 2, 2, 4, 4, 5, 6, 9, 10, 7, 8, 4, 8, 6, 8,
8, 5, 4, 6), .Dim = c(10L, 2L))
s6 <- as_sparse6(elm, n = 10)
# To edgelist matrix -------------------------------------------------------
edgelist_from_sparse6(s6)
#> $`:IeEgqO_CXHt`
#> [,1] [,2]
#> [1,] 2 4
#> [2,] 4 6
#> [3,] 5 6
#> [4,] 1 7
#> [5,] 1 8
#> [6,] 2 8
#> [7,] 4 8
#> [8,] 5 8
#> [9,] 4 9
#> [10,] 6 10
#> attr(,"gorder")
#> [1] 10
#>
# To igraph object ---------------------------------------------------------
if(requireNamespace("igraph", quietly=TRUE)) {
igraph_from_sparse6(s6)
}
#> $`:IeEgqO_CXHt`
#> IGRAPH 6bc0837 U--- 10 10 --
#> + edges from 6bc0837:
#> [1] 2-- 4 4-- 6 5-- 6 1-- 7 1-- 8 2-- 8 4-- 8 5-- 8 4-- 9 6--10
#>
# To network object --------------------------------------------------------
if(requireNamespace("network", quietly=TRUE)) {
network_from_sparse6(s6)
}
#> $`:IeEgqO_CXHt`
#> Network attributes:
#> vertices = 10
#> directed = FALSE
#> hyper = FALSE
#> loops = FALSE
#> multiple = FALSE
#> bipartite = FALSE
#> total edges= 10
#> missing edges= 0
#> non-missing edges= 10
#>
#> Vertex attribute names:
#> vertex.names
#>
#> No edge attributes
#>