e, j) {
                config.data.datasets[i].data[j] = randomScalingFactor();
            });
        });
        window.myPolarArea.update();
    });

    var colorNames = Object.keys(window.chartColors);
    document.getElementById('addData').addEventListener('click', function() {
        if (config.data.datasets.length > 0) {
            config.data.labels.push('data #' + config.data.labels.length);
            config.data.datasets.forEach(function(dataset) {
                var colorName = colorNames