This class is an extension of `graphNEL-class`

. For graphs of this class, euler tours may always be constructed. Objects of this class should be created by `mk_even_graph`

This class has all slots from `graphNEL-class`

plus:

`dummy_node`

:Object of class

`"character"`

`extra_edges`

:Object of class

`"character"`

`weighted`

:Object of class

`"logical"`

Class `graphNEL-class`

, directly.
Class `graph-class`

, by class "graphNEL", distance 2.

- is_even_graph
`signature(g = "graphNEL")`

: checks whether a graph has all nodes of even degree.- is_even_graph
`signature(g = "even_graph")`

: always TRUE.

C.B. Hurley and R.W. Oldford

see overview

1 | ```
showClass("even_graph")
``` |

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