structural.properties.md
In igraph: Network Analysis and Visualization

bfs() deprecated argument

Code
  d <- dfs(g, root = 2, unreachable = FALSE, neimode = "out")
Condition
  Warning:
  The `neimode` argument of `dfs()` is deprecated as of igraph 1.3.0.
  i Please use the `mode` argument instead.

Code
  b <- bfs(g, root = 2, neimode = "out", unreachable = FALSE, order = TRUE, rank = TRUE,
    father = TRUE, pred = TRUE, succ = TRUE, dist = TRUE)
Condition
  Warning:
  The `neimode` argument of `bfs()` is deprecated as of igraph 1.3.0.
  i Please use the `mode` argument instead.

bfs() works

Code
  g <- graph_from_literal(a - +b - +c, z - +a, d)
  bfs(g, root = 2, mode = "out", unreachable = FALSE, order = TRUE, rank = TRUE,
    father = TRUE, pred = TRUE, succ = TRUE, dist = TRUE)
Output
  $root
  [1] 2

  $mode
  [1] "out"

  $order
  + 2/5 vertices, named:
  [1] b c

  $rank
  a b c z d 
  0 1 2 0 0

  $father
  + 5/5 vertices, named:
     a    b    c    z    d 
  <NA> <NA>    b <NA> <NA>

  $pred
  + 5/5 vertices, named:
     a    b    c    z    d 
  <NA> <NA>    b <NA> <NA>

  $succ
  + 5/5 vertices, named:
     a    b    c    z    d 
  <NA>    c <NA> <NA> <NA>

  $dist
   a  b  c  z  d 
  -1  0  1 -1 -1

  $neimode
  [1] "out"