some minor changes

src/shapevl/Collector.cpp

@@ -75,6 +75,7 @@ double Collector::add(const Trip* oldT, const Shape* oldS, const Trip* newT,
 
   for (const auto& p : oldLenDists) {
     _distDiffs.push_back(fabs(p.first - p.second));
+    _hopDists.push_back(p.first);
   }
 
   // new lines build from cleaned-up shapes
@@ -352,6 +353,15 @@ std::map<string, double> Collector::getStats() {
     stats["median-dist-diff"] = -1;
   }
 
+  if (_hopDists.size()) {
+    double s = 0;
+    for (auto d : _hopDists) s += d;
+
+    stats["avg-hop-dist"] = s / (_hopDists.size() * 1.0);
+  } else {
+    stats["avg-hop-dist"] = -1;
+  }
+
   stats["num-trips"] = _trips;
   stats["num-trips-matched"] = _results.size();
   stats["num-trips-wo-shapes"] = _noOrigShp;
@@ -386,10 +396,13 @@ std::pair<size_t, double> Collector::getDa(const std::vector<LINE>& a,
   std::pair<size_t, double> ret{0, 0};
 
   // convert (roughly) to degrees
-  double SEGL = 15.0 / util::geo::M_PER_DEG;
+  double SEGL = 15 / util::geo::M_PER_DEG;
+
+  double MAX = 50;
 
   for (size_t i = 0; i < a.size(); i++) {
     double fdMeter = 0;
+
     auto old = _dACache.find(a[i]);
     if (old != _dACache.end()) {
       auto match = old->second.find(b[i]);
@@ -404,7 +417,7 @@ std::pair<size_t, double> Collector::getDa(const std::vector<LINE>& a,
         _dACache[a[i]][b[i]] = fdMeter;
     }
 
-    if (fdMeter >= 50) {
+    if (fdMeter >= MAX) {
       ret.first++;
       ret.second += util::geo::latLngLen(a[i]);
     }

src/shapevl/Collector.h

@@ -98,6 +98,7 @@ class Collector {
   size_t _noOrigShp;
 
   std::vector<double> _distDiffs;
+  std::vector<double> _hopDists;
 
   double _fdSum;
   size_t _unmatchedSegSum;

src/shapevl/ShapevlMain.cpp

@@ -8,6 +8,8 @@
 #include <iostream>
 #include <string>
 #include <thread>
+#include <sys/resource.h>
+#include <stdio.h>
 #include <vector>
 #include "ad/cppgtfs/Parser.h"
 #include "shapevl/Collector.h"
@@ -42,8 +44,7 @@ void eval(const std::vector<std::string>* paths,
     int myFeed = count-- - 1;
     if (myFeed < 0) return;
     std::string path = (*paths)[myFeed];
-    LOG(DEBUG) << "Reading eval feed " << path << " "
-               << " ...";
+    LOG(DEBUG) << "Reading eval feed " << path << " ...";
     ad::cppgtfs::gtfs::Feed feed;
     ad::cppgtfs::Parser p;
 
@@ -80,6 +81,13 @@ int main(int argc, char** argv) {
   // initialize randomness
   srand(time(NULL) + rand());  // NOLINT
 
+  // increase max stack size for frechet distance calc
+
+  struct rlimit rl;
+  getrlimit(RLIMIT_STACK, &rl);
+
+  std::cout << rl.rlim_max << std::endl;
+
   std::string groundTruthFeedPath, motStr;
   motStr = "all";
   ad::cppgtfs::gtfs::Feed groundTruthFeed;