n>
    <button id="addDataset">Add Dataset</button>
    <button id="removeDataset">Remove Dataset</button>
    <button id="addData">Add Data</button>
    <button id="removeData">Remove Data</button>
    <script>
        var MONTHS = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];

        var randomScalingFactor = function() {
            return Math.round(Math.random() * 100 * (Math.random() > 0.5 ? -1 : 1));
        };
        var