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<!DOCTYPE html>
<html lang="en">
<head>
<script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
<script>
(adsbygoogle = window.adsbygoogle || []).push({
google_ad_client: "ca-pub-3523953066677938",
enable_page_level_ads: true
});
</script>
<!-- Global site tag (gtag.js) - Google Analytics -->
<script async src="https://www.googletagmanager.com/gtag/js?id=UA-79254642-6"></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', 'UA-79254642-6');
</script>
<meta charset="utf-8">
<title>Barplot | the D3 Graph Gallery</title>
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="How to build a barchart with Javascript and D3.js: from the most basic example to highly customized examples.">
<meta name="keywords" content="Data,Dataviz,Datavisualization,Javascript,D3,D3.js,lollipop,cleveland">
<meta name="author" content="Yan Holtz">
<link rel="icon" href="img/logo/D3_single_small.png">
<meta property="og:title" content="Barchart | the D3 Graph Gallery">
<meta property="og:image" content="img/overview_RGG.png">
<meta property="og:description" content="How to build a barchart with Javascript and D3.js: from the most basic example to highly customized examples.">
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<!-- Header -->
<header class="masthead" style="padding-top: 150px; padding-bottom: 80px">
<div class="textlanding">
<h1>Barchart</h1>
<hr class="short_hr">
<br>
<ul class="list-inline social-buttons">
<li class="list-inline-item">
<a href="https://twitter.com/R_Graph_Gallery">
<i class="fa fa-twitter"></i>
</a>
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<a href="https://github.com/holtzy">
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</a>
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<a href="https://www.yan-holtz.com">
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<br><br>
<p style="max-width: 700px; margin: auto">Welcome to the <a href="https://www.data-to-viz.com/graph/barplot.html">barplot</a> section of the d3 graph gallery. A barplot is used to display the relationship between a <u>numerical</u> and a <u>categorical</u> variable. This section also include <u>stacked</u> barplot and <u>grouped</u> barplot two levels of grouping are shown.</p>
</div>
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<!-- ======================== PORTFOLIO SECTION ============================ -->
<!-- Images must be 480 x 480, resize them with ./script_reformat_img.sh output_name.png -->
<section class="bg" id="portfolio" style="padding-top: 10px">
<div class="container">
<div class="mySeryTitle">Step by step</div>
<hr>
<p>Building barplots in d3.js relies on the addition of several <code>rect</code>, one per group in the categorical variable. The <a href="graph/barplot_basic.html">first example</a> below should guide you in this procedure. Note that <a href="https://www.data-to-viz.com/caveat/order_data.html">ordering groups</a> is an important step when building barplots. <a href="graph/barplot_ordered.html">This example</a> explains how to do it.</p>
<div id="portfolio-items" class="row">
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/barplot_basic.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Most basic</p>
<hr>
<p class="explanation_portfolio">The most basic barplot you can do in d3.js. Keeping only the core code.</p>
</div>
</div>
<img class="img-fluid" src="img/graph/barplot_basic.png" alt="">
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/barplot_horizontal.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Turn you barplot horizontal</p>
<hr>
<p class="explanation_portfolio">Makes sense if you have long labels: it makes them more readable.</p>
</div>
</div>
<img class="img-fluid" src="img/graph/barplot_horizontal.png" alt="">
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/barplot_ordered.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Order groups</p>
<hr>
<p class="explanation_portfolio">Makes the plot more insightful: readers can spot what the ranking is directly.</p>
</div>
</div>
<img class="img-fluid" src="img/graph/barplot_ordered.png" alt="">
</a>
</div>
</div>
<br><br><br><br>
<div class="mySeryTitle">Interactive</div>
<hr>
<p>Due to its simplicity, barplot is a very good chart to understand the basic concepts of <a href="interactivity.html">interactivity</a>. Below are many examples illustrating how to deal with <code>transition</code>, <code>buttons</code>, the <code>enter()</code> function and more.</p>
<div id="portfolio-items" class="row">
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/barplot_animation_start.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Animation at loading</p>
<hr>
<p class="explanation_portfolio">A couple of lines allow to add an animation effect when the plot is loading: bars start from 0 and reach their real value.</p>
</div>
</div>
<img class="img-fluid" src="img/graph/barplot_animation.gif" alt="">
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/barplot_button_color.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Change color with a button</p>
<hr>
<p class="explanation_portfolio">Clicking on a button triggers a function that changes the style of all rectangles</p>
</div>
</div>
<img class="img-fluid" src="img/graph/barplot_button_color.gif" alt="">
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/barplot_button_data_simple.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Change input data: simple version</p>
<hr>
<p class="explanation_portfolio">How to go from one dataset to another with smooth transition.<br><br>Works only with same number of group and same Y range. (X and Y axis are not updated)</p>
</div>
</div>
<img class="img-fluid" src="img/graph/barplot_button_data_simple.gif" alt="">
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/barplot_button_data_hard.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Change input data: upgraded version</p>
<hr>
<p class="explanation_portfolio">How to go from one dataset to another with smooth transition. <u>Upgraded</u> version: X and Y axis axis are updated: data 1 and 2 can have different # of group.</p>
</div>
</div>
<img class="img-fluid" src="img/graph/barplot_button_data_hard.gif" alt="">
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/barplot_button_data_csv.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Change input data: <code>.csv</code> input version</p>
<hr>
<p class="explanation_portfolio">Same as precedent plot, but use a <code>.csv</code> format as input file.</p>
</div>
</div>
<img class="img-fluid" src="img/graph/barplot_button_data_csv.gif" alt="">
</a>
</div>
</div>
<br><br><br><br>
<div class="mySeryTitle">Grouped and Stacked barplot</div>
<hr>
<p>A barplot can also display values for several levels of grouping. Subgroups can be displayed one beside each other, giving a grouped barplot. If subgroups are displayed on top of each other, it is a <a href="graph/barplot_stacked_basicWide.html">stacked barplot</a>.</p>
<div id="portfolio-items" class="row">
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/barplot_stacked_basicWide.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Basic stacked barplot</p>
<hr>
<p class="explanation_portfolio">Most basic stacked barplot. Input data at wide format.</p>
</div>
</div>
<img class="img-fluid" src="img/graph/barplot_stacked_basicWide.png" alt="">
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/barplot_grouped_basicWide.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Basic grouped barplot</p>
<hr>
<p class="explanation_portfolio">Most basic grouped barplot. Input data at wide format.</p>
</div>
</div>
<img class="img-fluid" src="img/graph/barplot_grouped_basicWide.png" alt="">
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/barplot_stacked_percent.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Percent stacked barplot</p>
<hr>
<p class="explanation_portfolio">Most basic percent stacked barplot. Input data at wide format.</p>
</div>
</div>
<img class="img-fluid" src="img/graph/barplot_stacked_percent.png" alt="">
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/barplot_stacked_hover.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Stacked barplot with tooltip</p>
<hr>
<p class="explanation_portfolio">Explain how to add a tooltip on hover for each subgroup. Input data at wide format.</p>
</div>
</div>
<img class="img-fluid" src="img/graph/barplot_stacked_hover.png" alt="">
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/barplot_stacked_highlight.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Highlight subgroups in stacked barplot</p>
<hr>
<p class="explanation_portfolio">It's hard to compare subgroups in a stacked barplot. Highlighting one on hover helps tackle this issue.</p>
</div>
</div>
<img class="img-fluid" src="img/graph/barplot_stacked_highlight.gif" alt="">
</a>
</div>
</div>
</div>
</section>
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<!-- ============================ RELATED SECTION ============================ -->
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<p class="mySeryTitle">Related chart types</p>
<hr>
<div class="row">
<div class="col-md-2 col-sm-4 portfolio-item ">
<a class="portfolio-link" href="barplot.html">
<div class="portfolio-hover">
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<i class="fa fa-plus fa-3x"></i>
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<div class="captionPortfolio">Barplot</div>
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<div class="captionPortfolio">Circular Barplot</div>
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