subgraph error (errata)
- To: mathgroup at smc.vnet.net
- Subject: [mg125816] subgraph error (errata)
- From: dan jack <dan.spectrix at gmail.com>
- Date: Wed, 4 Apr 2012 04:26:42 -0400 (EDT)
- Delivered-to: l-mathgroup@mail-archive0.wolfram.com
I write an errata for the previous message:
I obtain the error in this case:
gg = Graph[{11 -> 2, 11 -> 3, 4 -> 11, 5-> 11, 11 -> 11}]
Subgraph[gg, 1 ->_ ]
Join::headsd: Expression {11,2} at position 1 is expected to have head
List for all subexpressions through level 11.
DeleteDuplicates::list: List expected at position 1 in
DeleteDuplicates[Join[{11,2},{11,3},11]].
but not in this case:
gg = Graph[{1 -> 2, 1 -> 3, 4 -> 1, 5-> 1, 1-> 1}]
so it seems that the only difference is the vertex number: 1 works but
11 do not works ...very strange.
Obviously the arrows are the correct Directed Edges (ESC de ESC)...
any help or solidarity comment is appreciated :-)