diff --git a/rogueviz/embeddings/compare.cpp b/rogueviz/embeddings/compare.cpp
index bd2152f5..e472d20b 100644
--- a/rogueviz/embeddings/compare.cpp
+++ b/rogueviz/embeddings/compare.cpp
@@ -10,21 +10,24 @@ int count_directed_edges() {
   return M;
   }
 
+evaltype eval;
+
 void full_evaluation() {
 
   println(hlog, "evaluating embedding: " + current->name());
+  eval.current = true;
 
   try {
-    ld maxradius = 0;  
-    for(int i=0; i<isize(rogueviz::vdata); i++) maxradius = max(maxradius, current->zero_distance(i));
-    println(hlog, "maximum radius = ", maxradius);
+    eval.maxradius = 0;
+    for(int i=0; i<get_n(); i++) eval.maxradius = max(eval.maxradius, current->zero_distance(i));
+    println(hlog, "maximum radius = ", eval.maxradius);
     }
   catch(hr_exception&) {}
 
-  bool symmetric = count_directed_edges() == 2 * isize(edgeinfos);
-  if(symmetric) full_routing();
-  continuous_ranks();
-  analyze_mdl_symmetric(symmetric);
+  eval.symmetric = count_directed_edges() == 2 * isize(edgeinfos);
+  if(eval.symmetric) eval.routing = full_routing();
+  eval.rank = continuous_ranks();
+  eval.li = analyze_mdl_symmetric(eval.symmetric);
   }
 
 struct abstract_embedding : embedding {
diff --git a/rogueviz/embeddings/embeddings.cpp b/rogueviz/embeddings/embeddings.cpp
index a0edb8fa..53475bfd 100644
--- a/rogueviz/embeddings/embeddings.cpp
+++ b/rogueviz/embeddings/embeddings.cpp
@@ -92,11 +92,13 @@ void force_rvgraph() {
   }
 
 void reenable_embedding() {
+  eval.current = false;
   if(rogueviz::rv_quality >= 1 && among(current->get_dimension(), 2, 3) && current->get_dimension() <= WDIM) force_rvgraph();
   }
 
 void enable_embedding(std::shared_ptr<embedding> pe) {
   current = std::move(pe);
+  eval.current = false;
   reenable_embedding();
   }
 
diff --git a/rogueviz/embeddings/embeddings.h b/rogueviz/embeddings/embeddings.h
index 8386a431..4fbcc6f9 100644
--- a/rogueviz/embeddings/embeddings.h
+++ b/rogueviz/embeddings/embeddings.h
@@ -92,6 +92,26 @@ int count_directed_edges();
 
 void read_edgelist(const string& fn);
 void read_polar(const string& fn);
+
+struct rankinfo {
+  ld ranks = 0, rby = 0, map = 0, n = 0;
+  };
+
+struct loglik_info {
+  ld loglik, control;
+  long long N, N1, M;
+  bool symmetric;
+  };
+
+extern struct evaltype {
+  bool current;
+  ld maxradius;
+  iddata routing;
+  rankinfo rank;
+  loglik_info li;
+  bool symmetric;
+  } eval;
+
 }
 }
 
diff --git a/rogueviz/embeddings/maprank.cpp b/rogueviz/embeddings/maprank.cpp
index 43efb2f7..eb82ebdd 100644
--- a/rogueviz/embeddings/maprank.cpp
+++ b/rogueviz/embeddings/maprank.cpp
@@ -4,8 +4,8 @@ namespace rogueviz {
 
 namespace embeddings {
 
-void continuous_ranks() {
-  ld tot_ranks = 0, tot_rby = 0, tot_map = 0, tot_n = 0;
+rankinfo continuous_ranks() {
+  rankinfo ri;
 
   int N = get_n();
 
@@ -57,15 +57,16 @@ void continuous_ranks() {
         ltot_n++;
         }
       std::unique_lock<std::mutex> lk(lock);
-      tot_rby += ltot_rby;
-      tot_map += ltot_map;
-      tot_ranks += ltot_ranks;
-      tot_n += ltot_n;
+      ri.rby += ltot_rby;
+      ri.map += ltot_map;
+      ri.ranks += ltot_ranks;
+      ri.n += ltot_n;
       return 0;
       });
     }
-  println(hlog, "MeanRank = ", tot_ranks / tot_rby, " MAP = ", tot_map / tot_n);
-  println(hlog, "data: ", tie(tot_rby, tot_map, tot_ranks, tot_n, N));
+  println(hlog, "MeanRank = ", ri.ranks / ri.rby, " MAP = ", ri.map / ri.n);
+  println(hlog, "data: ", tie(ri.rby, ri.map, ri.ranks, ri.n, N));
+  return ri;
   }
 
 
diff --git a/rogueviz/embeddings/mdl.cpp b/rogueviz/embeddings/mdl.cpp
index c73f5473..155270b3 100644
--- a/rogueviz/embeddings/mdl.cpp
+++ b/rogueviz/embeddings/mdl.cpp
@@ -4,11 +4,12 @@ namespace embeddings {
 
 int tal_limit = 0;
 
-void analyze_mdl_symmetric(bool symmetric) {
+loglik_info analyze_mdl_symmetric(bool symmetric) {
   int dim = current->get_dimension();
-  int N = isize(rogueviz::vdata);
+  int N = get_n();
+  loglik_info li;
 
-  if(dim == 1) return;
+  if(dim == 1) return li;
 
   vector<ld> center_distances(N);
   for(int id=0; id<N; id++) center_distances[id] = current->zero_distance(id);
@@ -16,13 +17,17 @@ void analyze_mdl_symmetric(bool symmetric) {
   build_disttable_approx();
   logistic cont;
   cont.setRT(0, 1);
-  if(symmetric) fast_loglik_cont(cont, loglik_cont_approx, "lcont", 1, 1e-6);
-  if(symmetric) println(hlog, "loglikelihood = ", format("%.1f", -loglik_cont_approx(cont)));
+  if(symmetric) {
+    fast_loglik_cont(cont, loglik_cont_approx, "lcont", 1, 1e-6);
+    li.loglik = loglik_cont_approx(cont);
+    if(symmetric) println(hlog, "loglikelihood = ", format("%.1f", -li.loglik));
+    }
   ld N1 = N * (N-1.);
   ld M = count_directed_edges();
   if(symmetric) { N1 /= 2; M /= 2; }
   ld max_radius = 0;
   for(auto& d: center_distances) max_radius = max(max_radius, d);
+  li.N = N; li.M = M; li.N1 = N1;
   ld M1 = N1 - M;
   ld entropy = M * log(M/N1) + M1 * log(M1/N1);
   println(hlog, "N = ", N, " M = ", M, " radius = ", max_radius, " entropy = ", format("%.1f", -entropy));
@@ -53,8 +58,8 @@ void analyze_mdl_symmetric(bool symmetric) {
   vector<logistic> logistics(N, cont);
 
   if(!symmetric) {
-    if(tal_limit == 0) { println(hlog, "not computing TAL -- the graph is asymmetric"); return; }
-    if(N >= tal_limit) { println(hlog, "too large graph to compute TAL"); return; }
+    if(tal_limit == 0) { println(hlog, "not computing TAL -- the graph is asymmetric"); return li; }
+    if(N >= tal_limit) { println(hlog, "too large graph to compute TAL"); return li; }
 
     println(hlog, "computing TAL");
     bad.resize(N);
@@ -134,7 +139,7 @@ void analyze_mdl_symmetric(bool symmetric) {
       println(hlog, "  negloglik = ", extra_info);
       println(hlog, "  control = ", format("%.1f", dist_entropy + sphere_entropy + extra_info));
       }
-    return dist_entropy + sphere_entropy + extra_info;
+    return li.control = dist_entropy + sphere_entropy + extra_info;
     };
 
   ld last_rep = HUGE_VAL;
@@ -163,6 +168,8 @@ void analyze_mdl_symmetric(bool symmetric) {
       }
     last_rep = cur_rep;
     }
+
+  return li;
   }
 
 }
diff --git a/rogueviz/embeddings/routing.cpp b/rogueviz/embeddings/routing.cpp
index be42ec4d..bc79f527 100644
--- a/rogueviz/embeddings/routing.cpp
+++ b/rogueviz/embeddings/routing.cpp
@@ -213,7 +213,7 @@ int get_actual(int src) {
   return actual[src][current_goal];
   }
 
-void full_routing() {
+iddata full_routing() {
   iddata result;
   prepare_pairs();
   if(1) {
@@ -226,6 +226,7 @@ void full_routing() {
     }
   println(hlog, "greedy routing: success = ", result.suc / result.tot, " stretch = ", result.routedist / result.suc, " efficiency = ", result.eff / result.tot);
   println(hlog, "modded routing: success = ", result.msuc / result.tot, " stretch = ", result.mroutedist / result.msuc, " efficiency = ", result.meff / result.tot);
+  return result;
   }
 
 int routing_args() {