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density2d.html
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<!DOCTYPE html>
<html lang="en">
<head>
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<title>Density 2d | the D3 Graph Gallery</title>
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<meta
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content="How to build 2d density plot with Javascript and D3.js: from the most basic example to highly customized examples."
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<meta
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content="Data,Dataviz,Datavisualization,Javascript,D3,D3.js,2d density"
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<meta name="author" content="Yan Holtz" />
<link rel="icon" href="img/logo/D3_single_small.png" />
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<h1>Density 2d</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>
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<br /><br />
<p style="max-width: 700px; margin: auto">
This is the
<a href="https://www.data-to-viz.com/graph/density2d.html"
>density 2d</a
>
section of the gallery. A 2d density represents the combined
distribution of <u>two quantitative variables</u>. If you want to know
more about this kind of chart, visit
<a href="https://www.data-to-viz.com/graph/density2d.html"
>data-to-viz.com</a
>. If you're looking for a simple way to implement it in d3.js, pick
an example below.
</p>
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<div class="mySeryTitle">main density 2d types</div>
<hr />
<p>
A 2d density chart allows to visualize the
<u>combined distribution</u> of two quantitative variables. The
concept is always the same: one variable is represented on the X axis,
the other on the Y axis. Then, the number of observations within a
particular area of the 2D space is counted and represented by a color
gradient.
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<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/density2d_hexbin.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Hexbin chart</p>
<hr />
<p class="explanation_portfolio">
Group two-dimensional points into hexagonal bins. Possible
thanks to the <code>d3-hexbin</code> plugin.
</p>
</div>
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<img
class="img-fluid"
src="img/graph/density2d_hexbin.png"
alt=""
/>
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<a class="portfolio-link" href="graph/density2d_shading.html">
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<div class="portfolio-hover-content">
<p>2d density with shading</p>
<hr />
<p class="explanation_portfolio">
Very close from the contour plot, but shading is used to
make the link between layers.
</p>
</div>
</div>
<img
class="img-fluid"
src="img/graph/density2d_shading.png"
alt=""
/>
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<a class="portfolio-link" href="graph/density2d_histogram2d.html">
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<p>2d histogram</p>
<hr />
<p class="explanation_portfolio">
Group two-dimensional points into rectangular bins. Possible
thanks to the <code>d3-rectbin</code> plugin.
</p>
</div>
</div>
<img
class="img-fluid"
src="img/graph/density2d_histogram2d.png"
alt=""
/>
</a>
</div>
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<a class="portfolio-link" href="graph/density2d_contour.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Contour plot</p>
<hr />
<p class="explanation_portfolio">
Representation of contour polygons computed using marching
squares
</p>
</div>
</div>
<img
class="img-fluid"
src="img/graph/density2d_contour.png"
alt=""
/>
</a>
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<a class="portfolio-link" href="correlogram.html">
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</div>
</div>
<img
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<div class="captionPortfolio">Correlogram</div>
</div>
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<a class="portfolio-link" href="bubble.html">
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</a>
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</div>
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<a class="portfolio-link" href="connectedscatter.html">
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</div>
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</a>
<div class="captionPortfolio">Connected scatter</div>
</div>
<div
class="col-md-2 col-sm-4 portfolio-item show column correlation numonly bigdata"
>
<a class="portfolio-link" href="density2d.html">
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<i class="fa fa-plus fa-3x"></i>
</div>
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<img
class="img-fluid"
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</a>
<div class="captionPortfolio">Density 2d</div>
</div>
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