[R] Search for a graph package - see link

[Knut Krueger]

> Follow along these lines:
> http://lists.gnu.org/archive/html/igraph-help/2009-04/msg00104.html
> plus set the 'width' edge attribute to represent the number of actions.
>
>   

Thanks,Gabor
this was my first solution, but unfortunately the data are very 
complicated to visualize.
let me expand the example:

Example
Node 1 -> 2     1 actions
Node 2 -> 1    25 actions
Node 3 -> 1     4 actions
Node 1 -> 3    25 actions
Node 2 -> 3     5 actions
Node 3 -> 2    25 actions

In that case all lines would be thick and the actions Node 1 -> 2  ,Node 3 -> 1,Node 2 -> 3   would be invisible, so I tried the narrow arrows to get above the thick arrows in an other colour, but I found no rule to order them that the are always on the top 
... and the team was not satisfied with this suggestion ;-)

The would prefer two parallel arrows one for each direction. Its a very  
long mathematical formula to display those arrows, depending on the 
radius of the circles, and there is a ...hidden...error in the formula.



So I tried to ask again if there is another solution.

By the way: Do you know such arrow funtion: arrow(starting_point, angle, 
length) ?

Thanks's for your patient
Knut