foodweb                 Create a foodweb
foodweb_matrix          Create a function caller/callee matrix
get_funmat              Extract the function matrix from a 'foodweb'
                        object.
get_graphviz_spec       Extract the GraphViz specification from a
                        'foodweb' object.
graphviz_spec_from_matrix
                        Create a 'graphviz' specification from a
                        function matrix
is.foodweb              Is an object a 'foodweb'?
print.foodweb_matrix    Print a 'foodweb_matrix'
