I'm using Graph::Base, Graph::Undirected, and Graph::Writer::Dot explore and visualize a large electrical network. I need to be able to create multiple graphs based on information in the (flat) source files. I need to do something like this: 
foreach $area (@areas) {
        $graph{$area} = Graph->new();
}

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I've tried all the tricks I can think of with no joy. I get warnings when I try to add a vertex or an edge, not when I create the graphs. I'm stumped. Any suggestions welcome.

In reply to creating multiple graphs programmatically by Anonymous Monk

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