app/assets/javascripts/d3.js in d3_rails-3.4.5 vs app/assets/javascripts/d3.js in d3_rails-3.4.6

@@ -1,8 +1,8 @@
 !function() {
   var d3 = {
-    version: "3.4.5"
+    version: "3.4.6"
   };
   if (!Date.now) Date.now = function() {
     return +new Date();
   };
   var d3_arraySlice = [].slice, d3_array = function(list) {
@@ -89,17 +89,17 @@
   };
   function d3_number(x) {
     return x != null && !isNaN(x);
   }
   d3.mean = function(array, f) {
-    var n = array.length, a, m = 0, i = -1, j = 0;
+    var s = 0, n = array.length, a, i = -1, j = n;
     if (arguments.length === 1) {
-      while (++i < n) if (d3_number(a = array[i])) m += (a - m) / ++j;
+      while (++i < n) if (d3_number(a = array[i])) s += a; else --j;
     } else {
-      while (++i < n) if (d3_number(a = f.call(array, array[i], i))) m += (a - m) / ++j;
+      while (++i < n) if (d3_number(a = f.call(array, array[i], i))) s += a; else --j;
     }
-    return j ? m : undefined;
+    return j ? s / j : undefined;
   };
   d3.quantile = function(values, p) {
     var H = (values.length - 1) * p + 1, h = Math.floor(H), v = +values[h - 1], e = H - h;
     return e ? v + e * (values[h] - v) : v;
   };
@@ -2673,11 +2673,11 @@
     d3_time_numberRe.lastIndex = 0;
     var n = d3_time_numberRe.exec(string.substring(i, i + 2));
     return n ? (date.y = d3_time_expandYear(+n[0]), i + n[0].length) : -1;
   }
   function d3_time_parseZone(date, string, i) {
-    return /^[+-]\d{4}$/.test(string = string.substring(i, i + 5)) ? (date.Z = +string, 
+    return /^[+-]\d{4}$/.test(string = string.substring(i, i + 5)) ? (date.Z = -string, 
     i + 5) : -1;
   }
   function d3_time_expandYear(d) {
     return d + (d > 68 ? 1900 : 2e3);
   }
@@ -7701,12 +7701,10 @@
     function scale(x) {
       if (!isNaN(x = +x)) return range[d3.bisect(thresholds, x)];
     }
     scale.domain = function(x) {
       if (!arguments.length) return domain;
-      domain = x.filter(function(d) {
-        return !isNaN(d);
-      }).sort(d3_ascending);
+      domain = x.filter(d3_number).sort(d3_ascending);
       return rescale();
     };
     scale.range = function(x) {
       if (!arguments.length) return range;
       range = x;
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