anchor.diff:                    ++ "outputname='" ++ OutputFile ++ "'; "
                     ++ "inputnames='" ++ join_filenames(InputFiles) ++ "'; "
                     ++ "titles='" ++  join_titles(Titles) ++ "'\" " ++ plot_file(),
  +    lager:info("~p", [Command]),
       os:cmd(Command).
   
   %% @private
  
positive.code:             lists:foreach(
                  fun({Time, Bytes}) ->
                      Line = io_lib:format("~w,~w\n", [Time, Bytes]),
                      lager:info("LINE : ~p", [Line]),
                      file:write_file(InputFile, Line, [append])
                  end,
                  List
  
negative.code:     OutputFile = output_file(PlotDir),
      lager:info("Wrote average to files: ~p", [InputFiles]),
  
      Result = run_gnuplot(InputFiles, Titles, OutputFile),
      lager:info("Generating plot ~p. Output: ~p", [OutputFile, Result]),
      ok.
  
  