anchor.diff:    case file:open(Path ++ "/load_log.csv", [write]) of
       {ok, Fd} ->
         NodeStats = get_node_stats(0),
  -      Header = string:join(["elapsed", "window" | lists:map(fun({Name, _}) -> atom_to_list(Name) end, NodeStats)], ", ") ++ "\n",
  +      Header = string:join(["elapsed", "window" | lists:map(fun({Name, _}) ->
  +        atom_to_list(Name) end, NodeStats)], ", ") ++ "\n",
         io:fwrite(Fd, Header, []),
         erlang:send_after(Interval * 1000, self(), {timer, {log_load, StartTime, StartTime}}),
         {noreply, State#node_state{load_logging_fd = Fd}};
  
positive.code:       end, Values),
  
        lists:zip(HeaderAtom, AvgValues);
      Other -> Other
    end.
  
  %% save_node_stats_to_rrd/0
  
negative.code: %% create_node_stats_rrd/1
  %% ====================================================================
  %% @doc Creates node stats Round Robin Database
  -spec create_node_stats_rrd(Pid :: pid()) -> Result when
    Result :: {ok, Data :: binary()} | {error, Error :: term()}.
  %% ====================================================================
  create_node_stats_rrd(Pid) ->
    {ok, Period} = application:get_env(?APP_Name, node_monitoring_period),
  