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Overview

Histogram chart is a bar (column) chart used for frequency distribution in which the widths of the bars are proportional to classes into which variables have been divided and the heights of the bars are proportional to class frequencies.


Distribution curve

Provides a graphical representation of the normal distribution of data.


Marker

Marks data points with built-in shapes such as circles, rectangles, ellipses, vertical lines, horizontal lines, diamonds, triangles, and pentagons. In addition to these shapes, use images to make the point more attractive.


Data label

Shows the information about the data point with data label. Add a template to display data labels with any HTML element such as images, DIV, and spans to make data more informative.


Vertical chart

The histogram chart can be transposed vertically to view the data in a different perspective.


Customization

Customizes the color and border of the histogram chart using built-in APIs to make it visually unique.


Code snippet

import { Chart, HistogramSeries} from '@syncfusion/ej2-charts';
Chart.Inject(HiloOpenCloseSeries);
let chartData: Object[] = [];
    let points: number[] = [5.250, 7.750, 0, 8.275, 9.750, 7.750, 8.275, 6.250, 5.750,
        5.250, 23.000, 26.500, 27.750, 25.025, 26.500, 26.500, 28.025, 29.250, 26.750, 27.250,
        26.250, 25.250, 34.500, 25.625, 25.500, 26.625, 36.275, 36.250, 26.875, 40.000, 43.000,
        46.500, 47.750, 45.025, 56.500, 56.500, 58.025, 59.250, 56.750, 57.250,
        46.250, 55.250, 44.500, 45.525, 55.500, 46.625, 46.275, 56.250, 46.875, 43.000,
        46.250, 55.250, 44.500, 45.425, 55.500, 56.625, 46.275, 56.250, 46.875, 43.000,
        46.250, 55.250, 44.500, 45.425, 55.500, 46.625, 56.275, 46.250, 56.875, 41.000, 63.000,
        66.500, 67.750, 65.025, 66.500, 76.500, 78.025, 79.250, 76.750, 77.250,
        66.250, 75.250, 74.500, 65.625, 75.500, 76.625, 76.275, 66.250, 66.875, 80.000, 85.250,
        87.750, 89.000, 88.275, 89.750, 97.750, 98.275, 96.250, 95.750, 95.250
    ];
    points.map((value: number) => {
        chartData.push({
            y: value
        });

let chart: Chart = new Chart({
    series:[{
       type: 'Histogram',
       dataSource: chartData,
        yName: 'y',       
    }],
}, '#Chart');
<!DOCTYPE html>
<html>

<head></head>

<body style = 'overflow: hidden'> 
    <div id="container">
     <div id="Chart"></div>
    </div>

    <style>
        
        #control-container {
            padding: 0px !important;
        }
    </style>
</body>

</html>

Learning Resources

UG

Histogram Chart User Guide

Learn the available options to customize JavaScript Histogram chart.

API

Histogram Chart API Reference

Explore the JavaScript Histogram APIs.


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