conversion.md
In igraph: Network Analysis and Visualization

as.directed() deprecation

Code
  is_directed(as.directed(g, mode = "mutual"))
Condition
  Warning:
  `as.directed()` was deprecated in igraph 2.1.0.
  i Please use `as_directed()` instead.
Output
  [1] TRUE

as.undirected() deprecation

Code
  is_directed(as.undirected(g, mode = "collapse"))
Condition
  Warning:
  `as.undirected()` was deprecated in igraph 2.1.0.
  i Please use `as_undirected()` instead.
Output
  [1] FALSE

as_adjacency_matrix() errors well -- sparse

Code
  as_adjacency_matrix(g, attr = "bla")
Condition
  Error in `get.adjacency.sparse()`:
  ! no such edge attribute

Code
  as_adjacency_matrix(g, attr = "bla")
Condition
  Error in `get.adjacency.sparse()`:
  ! Matrices must be either numeric or logical, and the edge attribute is not

as_adjacency_matrix() errors well -- dense

Code
  as_adjacency_matrix(g, attr = "bla", sparse = FALSE)
Condition
  Error in `get.adjacency.dense()`:
  ! no such edge attribute

Code
  as_adjacency_matrix(g, attr = "bla", sparse = FALSE)
Condition
  Error in `get.adjacency.dense()`:
  ! Matrices must be either numeric or logical, and the edge attribute is not