Step Line Without Risers

<h2>Step start and end position control</h2> You can control exactly where within category/date each step starts and ends using series' <code>startLocation</code> and <code>endLocation</code>. [amb href="https://www.amcharts.com/docs/v4/tutorials/taming-the-step-line-series/"]More information about step series[/amb] <h2>Step series without risers</h2> Step line series can display just horizontal lines, without vertical connectors. For that just set its <code>noRisers</code> property to <code>false</code>. <h2>Series in a scrollbar</h2> The scrollbar used for zooming of the chart can depict a "small version" of chart's actual series. More than one series can be added to the scrollbar. [amb href="https://www.amcharts.com/docs/v4/chart-types/xy-chart/#Scrollbar_with_preview"]More information about XY chart scrollbar[/amb]

by amcharts

HTML

<script src="https://cdn.amcharts.com/lib/4/core.js"></script>
<script src="https://cdn.amcharts.com/lib/4/charts.js"></script>
<script src="https://cdn.amcharts.com/lib/4/themes/animated.js"></script>
<div id="chartdiv"></div>

CSS

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
}

#chartdiv {
  width: 100%;
  height: 500px;
}

JavaScript

/**
 * ---------------------------------------
 * This demo was created using amCharts 4.
 * 
 * For more information visit:
 * https://www.amcharts.com/
 * 
 * Documentation is available at:
 * https://www.amcharts.com/docs/v4/
 * ---------------------------------------
 */

// Themes begin
am4core.useTheme(am4themes_animated);
// Themes end

// Create chart
var chart = am4core.create("chartdiv", am4charts.XYChart);
chart.hiddenState.properties.opacity = 0; // this makes initial fade in effect

chart.paddingRight = 20;

var data = [];
var visits = 10;
for (var i = 1; i < 200; i++) {
    visits += Math.round((Math.random() < 0.5 ? 1 : -1) * Math.random() * 10);
    data.push({ date: new Date(2018, 0, i), value: visits });
}

chart.data = data;

var dateAxis = chart.xAxes.push(new am4charts.DateAxis());
dateAxis.renderer.grid.template.location = 0;

var valueAxis = chart.yAxes.push(new am4charts.ValueAxis());
valueAxis.tooltip.disabled = true;
valueAxis.renderer.minWidth = 35;

var series = chart.series.push(new am4charts.StepLineSeries());
series.dataFields.dateX = "date";
series.dataFields.valueY = "value";
series.noRisers = true;
series.strokeWidth = 2;
series.fillOpacity = 0.2;
series.sequencedInterpolation = true;

series.tooltipText = "{valueY.value}";
chart.cursor = new am4charts.XYCursor();

chart.scrollbarX = new am4charts.XYChartScrollbar();
chart.scrollbarX.series.push(series);