A graph of class graphMCP or an object of class
gMCPResult.
file
A connection, or a character string naming the file to print to.
If "" (the default), the report is printed to the standard output
connection (the console unless redirected by sink). If it is
"|cmd", the output is piped to the command given by cmd, by
opening a pipe connection [taken from the manual page of cat, which
is called in this function].
...
Arguments to be passed to method graph2latex like
package and scale.