Bump to v4.0.0.

lodash.mean/index.js

@@ -0,0 +1,28 @@
+/**
+ * lodash 4.0.0 (Custom Build) <https://lodash.com/>
+ * Build: `lodash modularize exports="npm" -o ./`
+ * Copyright 2012-2016 The Dojo Foundation <http://dojofoundation.org/>
+ * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
+ * Copyright 2009-2016 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+ * Available under MIT license <https://lodash.com/license>
+ */
+var sum = require('lodash.sum');
+
+/**
+ * Computes the mean of the values in `array`.
+ *
+ * @static
+ * @memberOf _
+ * @category Math
+ * @param {Array} array The array to iterate over.
+ * @returns {number} Returns the mean.
+ * @example
+ *
+ * _.mean([4, 2, 8, 6]);
+ * // => 5
+ */
+function mean(array) {
+  return sum(array) / (array ? array.length : 0);
+}
+
+module.exports = mean;