dashboard.js

var ALL_CHARTS = []

var REFRESH_ALL_CHARTS = function(){
    for(var i = 0; i < ALL_CHARTS.length; i++){
        ALL_CHARTS[i].update();
    }
}

nv.addGraph(function() {
    var chart = nv.models.linePlusBarChart()
        .margin({top: 0, right: 50, bottom: 25, left: 50})
        .x(function(d,i) { return i })
        .color(d3.scale.category10().range());

    chart.xAxis.tickFormat(function(d) {
      var dx = testdata[0].values[d] && testdata[0].values[d].x || 0;
      return dx ? d3.time.format('%x')(new Date(dx)) : '';
    });

    chart.y1Axis
        .tickFormat(d3.format(',f'));

    chart.y2Axis
        .tickFormat(function(d) { return '$' + d3.format(',.2f')(d) });

    chart.bars.forceY([0]);
    //chart.lines.forceY([0]);

    d3.select('#revenue_metric_1 svg')
        .datum(testdata)
      .transition().duration(500).call(chart);

    nv.utils.windowResize(chart.update);

    ALL_CHARTS.push(chart)

    return chart;
});