Chartjs- adding line to bar graph

I’m trying to add a line to a bar chart using the Chartjs library for Meteor. I have the bar chart complete and I was able to add two data sets to the graph but both of them are bars. How do I make one of them be a line and one a bar?

Here’s what I have so far:

var barData = {
        labels: ["Monday", "Tuesday", "Wednesday", "Thursday"],
        datasets: [
            {
                label: "My First dataset",
                fillColor: "rgba(28,132,198,0.8)",
                strokeColor: "rgba(220,220,220,0.8)",
                highlightFill: "rgba(28,132,198,0.3)",
                highlightStroke: "rgba(220,220,220,1)",
                data: [1,2,3,4]
            },

            {
                label: "My First dataset",
                fillColor: "rgba(11,52,79,0.8)",
                strokeColor: "rgba(220,220,220,0.8)",
                highlightFill: "rgba(11,52,79,0.3)",
                highlightStroke: "rgba(220,220,220,1)",
                data: [5,2,7,3]
            }
        ]
    };

    var barOptions = {
        scaleBeginAtZero: true,
        scaleShowGridLines: true,
        scaleGridLineColor: "rgba(0,0,0,.05)",
        scaleGridLineWidth: 1,
        barShowStroke: true,
        barStrokeWidth: 2,
        barValueSpacing: 5,
        barDatasetSpacing: 1,
        responsive: true,

    }


    var ctx = document.getElementById("chart").getContext("2d");
    var myNewChart = new Chart(ctx).Bar(barData, barOptions);

I got the solution for this! I followed this:
http://jsfiddle.net/gh/get/jquery/3.1.1/highslide-software/highcharts.com/tree/master/samples/highcharts/demo/combo-dual-axes/