Fix bug where the top-trigram was not counted

Closes GH-28.
wooorm · Jan 27, 2016 · 0152d0a · 0152d0a
1 parent 68bae5d
commit 0152d0a
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Showing 4 changed files with 7 additions and 6 deletions.
diff --git a/dist/franc-all.js b/dist/franc-all.js
diff --git a/dist/franc-most.js b/dist/franc-most.js
diff --git a/dist/franc.js b/dist/franc.js
diff --git a/lib/franc.js b/lib/franc.js
@@ -135,15 +135,16 @@ function filterLanguages(languages, whitelist, blacklist) {
  */
 function getDistance(trigrams, model) {
     var distance = 0;
-    var index = trigrams.length;
+    var index = -1;
+    var length = trigrams.length;
     var trigram;
     var difference;
 
-    while (index--) {
+    while (++index < length) {
         trigram = trigrams[index];
 
         if (trigram[0] in model) {
-            difference = trigram[1] - model[trigram[0]];
+            difference = trigram[1] - model[trigram[0]] - 1;
 
             if (difference < 0) {
                 difference = -difference;