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<h3 class="navbar-left"><strong>ggplot2</strong> extensions</h3>

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ggplot2 now has an official extension mechanism. This means that others can now easily create their own stats, geoms and positions, and provide them in other packages. This should allow the ggplot2 community to flourish, even as less development work happens in ggplot2 itself. This page showcases these extensions.

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<h5 class="list-group-item-heading">ggiraph</h5>

<p class="list-group-item-text">Make ggplot interactive</p>

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<p class="list-group-item-text">Horizontal versions of ggplot2 geoms</p>

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<p class="list-group-item-text">Accelarating ggplot2</p>

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<p class="list-group-item-text">Miscellaneous extensions to ggplot2</p>

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<p class="list-group-item-text">radar charts with ggplot2</p>

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<h5 class="list-group-item-heading">ggTimeSeries</h5>

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<p class="list-group-item-text">A phylogenetic tree viewer</p>

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<p class="list-group-item-text">Seasonal adjustment on the fly</p>

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<h3>ggalt</h3>

<p><a href="https://github.com/hrbrmstr/ggalt" class="uri">https://github.com/hrbrmstr/ggalt</a></p>

<p>A compendium of ‘geoms’, ‘coords’ and ‘stats’ for ‘ggplot2’, including splines, 1d and 2d densities, univariate average shifted histograms and a new map coordinate system based on the ‘PROJ.4’-library..</p>

<pre class="r"><code># Example from https://github.com/hrbrmstr/ggalt

library(ggplot2)

library(gridExtra)

library(ggalt)

set.seed(1492)

dat &lt;- data.frame(x=c(1:10, 1:10, 1:10),

y=c(sample(15:30, 10), 2*sample(15:30, 10), 3*sample(15:30, 10)),

group=factor(c(rep(1, 10), rep(2, 10), rep(3, 10)))

)

ggplot(dat, aes(x, y, group=group, color=factor(group))) +

geom_point(color=&quot;black&quot;) +

geom_smooth(se=FALSE, linetype=&quot;dashed&quot;, size=0.5) +

geom_xspline(spline_shape=-0.4, size=0.5)</code></pre>

<p><img src="ggalt_files/figure-html/unnamed-chunk-1-1.png" title="" alt="" width="576" /></p>

<pre class="r"><code>## Alternate 2D density plots

ggplot(faithful, aes(x = eruptions, y = waiting)) +

geom_point() +

xlim(0.5, 6) +

ylim(40, 110) +

geom_bkde2d(bandwidth=c(0.5, 4))</code></pre>

<p><img src="ggalt_files/figure-html/unnamed-chunk-1-2.png" title="" alt="" width="576" /></p>

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