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Smoothed Line Chart

Smoothing algorithms

amCharts 5 comes with a number of line smoothing algorithms that you can use to suit your particular data.

Related tutorials

Demo source

<!-- Styles -->
<style>
#chartdiv {
  width: 100%;
  height: 500px;
}
</style>

<!-- Resources -->
<script src="https://cdn.amcharts.com/lib/5/index.js"></script>
<script src="https://cdn.amcharts.com/lib/5/xy.js"></script>
<script src="https://cdn.amcharts.com/lib/5/themes/Animated.js"></script>

<!-- Chart code -->
<script>
am5.ready(function() {


// Create root element
// https://www.amcharts.com/docs/v5/getting-started/#Root_element
var root = am5.Root.new("chartdiv");


// Set themes
// https://www.amcharts.com/docs/v5/concepts/themes/
root.setThemes([
  am5themes_Animated.new(root)
]);


// Create chart
// https://www.amcharts.com/docs/v5/charts/xy-chart/
var chart = root.container.children.push(am5xy.XYChart.new(root, {
  panX: true,
  panY: true,
  wheelX: "panX",
  wheelY: "zoomX",
  pinchZoomX: true,
  paddingLeft: 0
}));

// Add cursor
// https://www.amcharts.com/docs/v5/charts/xy-chart/cursor/
var cursor = chart.set("cursor", am5xy.XYCursor.new(root, {
  behavior: "none"
}));
cursor.lineY.set("visible", false);


// Generate random data
var date = new Date();
date.setHours(0, 0, 0, 0);
var value = 100;

function generateData() {
  value = Math.round((Math.random() * 10 - 5) + value);
  am5.time.add(date, "day", 1);
  return {
    date: date.getTime(),
    value: value
  };
}

function generateDatas(count) {
  var data = [];
  for (var i = 0; i < count; ++i) {
    data.push(generateData());
  }
  return data;
}


// Create axes
// https://www.amcharts.com/docs/v5/charts/xy-chart/axes/
var xAxis = chart.xAxes.push(am5xy.DateAxis.new(root, {
  maxDeviation: 0.5,
  baseInterval: {
    timeUnit: "day",
    count: 1
  },
  renderer: am5xy.AxisRendererX.new(root, {
    minGridDistance: 80,
    minorGridEnabled: true,
    pan: "zoom"
  }),
  tooltip: am5.Tooltip.new(root, {})
}));

var yAxis = chart.yAxes.push(am5xy.ValueAxis.new(root, {
  maxDeviation: 1,
  renderer: am5xy.AxisRendererY.new(root, {
    pan: "zoom"
  })
}));


// Add series
// https://www.amcharts.com/docs/v5/charts/xy-chart/series/
var series = chart.series.push(am5xy.SmoothedXLineSeries.new(root, {
  name: "Series",
  xAxis: xAxis,
  yAxis: yAxis,
  valueYField: "value",
  valueXField: "date",
  tooltip: am5.Tooltip.new(root, {
    labelText: "{valueY}"
  })
}));

series.fills.template.setAll({
  visible: true,
  fillOpacity: 0.2
});

series.bullets.push(function () {
  return am5.Bullet.new(root, {
    locationY: 0,
    sprite: am5.Circle.new(root, {
      radius: 4,
      stroke: root.interfaceColors.get("background"),
      strokeWidth: 2,
      fill: series.get("fill")
    })
  });
});


// Add scrollbar
// https://www.amcharts.com/docs/v5/charts/xy-chart/scrollbars/
chart.set("scrollbarX", am5.Scrollbar.new(root, {
  orientation: "horizontal"
}));


var data = generateDatas(50);
series.data.setAll(data);


// Make stuff animate on load
// https://www.amcharts.com/docs/v5/concepts/animations/
series.appear(1000);
chart.appear(1000, 100);

}); // end am5.ready()
</script>

<!-- HTML -->
<div id="chartdiv"></div>