Index: node_modules/d3-random/src/bates.js
===================================================================
--- node_modules/d3-random/src/bates.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-random/src/bates.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,19 @@
+import defaultSource from "./defaultSource.js";
+import irwinHall from "./irwinHall.js";
+
+export default (function sourceRandomBates(source) {
+  var I = irwinHall.source(source);
+
+  function randomBates(n) {
+    // use limiting distribution at n === 0
+    if ((n = +n) === 0) return source;
+    var randomIrwinHall = I(n);
+    return function() {
+      return randomIrwinHall() / n;
+    };
+  }
+
+  randomBates.source = sourceRandomBates;
+
+  return randomBates;
+})(defaultSource);