anchor.diff:           fprob, 5, 2, 0, Options),
       ok.
   
  --spec art_scale(MBranch::pos_integer(), MBucket::pos_integer(),
  +-spec art_scale(N::pos_integer(), EvalRepeats::pos_integer(),
  +                MBranch::pos_integer(), MBucket::pos_integer(),
                   ACorrFactor::non_neg_integer()) -> ok.
  -art_scale(MBranch, MBucket, ACorrFactor) ->
  +art_scale(N, EvalRepeats, MBranch, MBucket, ACorrFactor) ->
       {Dir, FileName} = default_dir_and_name(art),
  -    art_scale(Dir, FileName, MBranch, MBucket, ACorrFactor).
  -
  --spec art_scale(DestDir::string(), FileName::string(), MBranch::pos_integer(),
  +    art_scale(Dir, FileName, N, EvalRepeats, MBranch, MBucket, ACorrFactor).
  +
  +-spec art_scale(DestDir::string(), FileName::string(), N::pos_integer(),
  +                EvalRepeats::pos_integer(), MBranch::pos_integer(),
                   MBucket::pos_integer(), ACorrFactor::non_neg_integer()) -> ok.
  -art_scale(Dir, FileName, MBranch, MBucket, ACorrFactor) ->
  +art_scale(Dir, FileName, N, EvalRepeats, MBranch, MBucket, ACorrFactor) ->
       Scenario = #scenario{ ring_type = uniform,
                             data_type = random },
  -    PairRing = #ring_config{ data_count = 10000,
  +    PairRing = #ring_config{ data_count = N,
                                node_count = 4,
                                fquadrants = [1,3],
                                data_failure_prob = 3,
                                round = 1 },
  -    Options = [{eval_dir, Dir}, {filename, FileName}],
  +    Options = [{eval_dir, Dir}, {filename, FileName}, {eval_repeats, EvalRepeats}],
       
       Art = #rc_config{recon_method = art,
                        merkle_bucket = MBucket, merkle_branch = MBranch,
  
positive.code:                              fquadrants = [1,3],
                               data_failure_prob = 3,
                               round = 1 },
      Options = [{eval_dir, Dir}, {filename, FileName}],
      
      Trivial = #rc_config{ recon_method = trivial, recon_p1e = P1E,
                            align_to_bytes = AlignToBytes },
  
negative.code: %    EvalDir = proplists:get_value(eval_dir, Options, "../"),
  %    {Hour, Min, Sec} = proplists:get_value(eval_time, Options, {0, 0, 0}),
      
      MPList = util:for_to_ex(1, EvalRepeats,
                              fun(I) ->
                                      ActI = EvalRepeats - I + 1,
                                      io:format("~p ", [ActI]),
                                      {_DBSize, _Load, Missing, Outdated} =
                                          build_dht({Scen, StepRing, StepRC}),
  