Dear all,

`Since a few months, I have developed a quite powerful tool in Perl
``doing
`efficiently very simple graph analysis (node degree, graph

`intersection, ...). This is called NeAT (http://rsat.scmbb.ulb.ac.be/neat/
``)
`and is publicly available.
However, in some cases, I am very limited by Perl.

`It is for example the case, when I want to compute the betweenness
``and the
``closeness of the nodes in a graph as for this, I need to compute all
``geodesic
``paths. So, I would like to create a small C executable based on the
``igraph
`library that would be called by my Perl program.

`Unfortunately, I am complete newbie in C / C++ and I do not know how
``to start
`with.
Could you give some advices?

`I want only to load a (directed weighted) graph, calculate the
``closeness and
`the betweenness for each node and to display the output.
I would be very thankful if you could help me,
Sylvain (desperate biologist)
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