Edit in JSFiddle

var data = [
	{	x: month(0),	followers: 10,	reposts: 1,		likes: 1,		comments: 1 },
	{	x: month(1),	followers: 17,	reposts: 2,		likes: 2,		comments: 1 },
  {	x: month(2),	followers: 37,	reposts: 5,		likes: 15,	comments: 10 },
  {	x: month(3),	followers: 101,	reposts: 7,		likes: 17,	comments: 12 },
  {	x: month(4),	followers: 337,	reposts: 9,		likes: 27,	comments: 19 },
  {	x: month(5),	followers: 337,	reposts: 11,	likes: 33,	comments: 25 },
  {	x: month(6),	followers: 717,	reposts: 11,	likes: 23,	comments: 14 },
  {	x: month(7),	followers: 899,	reposts: 11,	likes: 23,	comments: 14 }
];

var chart = new tauCharts.Chart({
    dimensions: {
        "x"					: { "type": "order", "scale": "period" },
				"followers"	: { "type": "measure", "scale": "linear" },
        "reposts"		: { "type": "measure", "scale": "linear" },
        "comments"	: { "type": "measure", "scale": "linear" },
    },
		data:data,
    type: 'line',
    x: ['x'],
    y: ['followers'],
    guide: {
        x: {
            label: { text: 'Time' },
            tickPeriod: 'month'
        },
        y: {
            label: { text:'Followers' }
        }
    },
    plugins: [
        tauCharts.api.plugins.get('layers')({
            mode: 'dock',
            showPanel: true,
            // Default values:
            // title: "Layers",
            // label: "Layer Type",
            // axisWidth: 45,
            label: "Indicators",
						axisWidth: 55,
            layers: [
                {
                    type: 'stacked-bar',
                    y: ['likes', 'reposts', 'comments'],
                    guide: {
                    		label: {
                        		byKeys: {
                            		likes: 'Likes',
                                reposts: 'Reposts',
                                comments: 'Comments'
                            }
                        },
                        scaleOrient: 'right',
                        textAnchor: 'start',
                        zIndex: -1
                    }
                }
            ]
        })
        ,
        tauCharts.api.plugins.get('legend')()
        ,
        tauCharts.api.plugins.get('tooltip')()
    ]
});

chart.renderTo('#target');

function month (i) {
    return new Date('2015-01-01').setMonth(i);
};