These functions are not intended to be called by the user. They are for computing intermediate graph-theoretic information, processed to give the final Fechnerian scaling results.
Note
There are also the internal functions plot.fechner, print.fechner, and summary.fechner, the plot, print, and summary methods for objects of the class fechner, and the internal function print.summary.fechner, the print method for objects of the class summary.fechner. These are documented, respectively, at the afore mentioned links.