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<!DOCTYPE html>
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information as bar chart and diverging bar. Except that it looks more modern.
Instead of geom_bar, I use geom_point and geom_segment to get the lollipops
right. Let’s draw a lollipop using the same data I prepared in the previous
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Instead of geom_bar, I use geom_point and geom_segment to get the lollipops
right. Let’s draw a lollipop using the same data I prepared in the previous
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<img src="" class="logo" alt=""><h1>Diverging Lollipop Chart</h1>
<small class="dont-index">Source: <a href="https://github.com/spsanderson/healthyR/blob/HEAD/R/diverging-lollipop-plt.R" class="external-link"><code>R/diverging-lollipop-plt.R</code></a></small>
<div class="d-none name"><code>diverging_lollipop_plt.Rd</code></div>
</div>
<div class="ref-description section level2">
<p>This is a diverging lollipop function. Lollipop chart conveys the same
information as bar chart and diverging bar. Except that it looks more modern.
Instead of geom_bar, I use geom_point and geom_segment to get the lollipops
right. Let’s draw a lollipop using the same data I prepared in the previous
example of diverging bars.</p>
</div>
<div class="section level2">
<h2 id="ref-usage">Usage<a class="anchor" aria-label="anchor" href="#ref-usage"></a></h2>
<div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">diverging_lollipop_plt</span><span class="op">(</span></span>
<span> <span class="va">.data</span>,</span>
<span> <span class="va">.x_axis</span>,</span>
<span> <span class="va">.y_axis</span>,</span>
<span> .plot_title <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span> .plot_subtitle <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span> .plot_caption <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span> .interactive <span class="op">=</span> <span class="cn">FALSE</span></span>
<span><span class="op">)</span></span></code></pre></div>
</div>
<div class="section level2">
<h2 id="arguments">Arguments<a class="anchor" aria-label="anchor" href="#arguments"></a></h2>
<dl><dt>.data</dt>
<dd><p>The data to pass to the function, must be a tibble/data.frame.</p></dd>
<dt>.x_axis</dt>
<dd><p>The data that is passed to the x-axis. This will also be the
<code>x</code> and <code>xend</code> parameters of the <code>geom_segment</code></p></dd>
<dt>.y_axis</dt>
<dd><p>The data that is passed to the y-axis. This will also equal the
parameters of <code>yend</code> and <code>label</code></p></dd>
<dt>.plot_title</dt>
<dd><p>Default is NULL</p></dd>
<dt>.plot_subtitle</dt>
<dd><p>Default is NULL</p></dd>
<dt>.plot_caption</dt>
<dd><p>Default is NULL</p></dd>
<dt>.interactive</dt>
<dd><p>Default is FALSE. TRUE returns a plotly plot</p></dd>
</dl></div>
<div class="section level2">
<h2 id="value">Value<a class="anchor" aria-label="anchor" href="#value"></a></h2>
<p>A <code>plotly</code> plot or a <code>ggplot2</code> static plot</p>
</div>
<div class="section level2">
<h2 id="details">Details<a class="anchor" aria-label="anchor" href="#details"></a></h2>
<p>This function takes only a few arguments and returns a ggplot2 object.</p>
</div>
<div class="section level2">
<h2 id="author">Author<a class="anchor" aria-label="anchor" href="#author"></a></h2>
<p>Steven P. Sanderson II, MPH</p>
</div>
<div class="section level2">
<h2 id="ref-examples">Examples<a class="anchor" aria-label="anchor" href="#ref-examples"></a></h2>
<div class="sourceCode"><pre class="sourceCode r"><code><span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/base/message.html" class="external-link">suppressPackageStartupMessages</a></span><span class="op">(</span><span class="kw"><a href="https://rdrr.io/r/base/library.html" class="external-link">library</a></span><span class="op">(</span><span class="va"><a href="https://ggplot2.tidyverse.org" class="external-link">ggplot2</a></span><span class="op">)</span><span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/utils/data.html" class="external-link">data</a></span><span class="op">(</span><span class="st">"mtcars"</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="va">mtcars</span><span class="op">$</span><span class="va">car_name</span> <span class="op"><-</span> <span class="fu"><a href="https://rdrr.io/r/base/colnames.html" class="external-link">rownames</a></span><span class="op">(</span><span class="va">mtcars</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="va">mtcars</span><span class="op">$</span><span class="va">mpg_z</span> <span class="op"><-</span> <span class="fu"><a href="https://rdrr.io/r/base/Round.html" class="external-link">round</a></span><span class="op">(</span><span class="op">(</span><span class="va">mtcars</span><span class="op">$</span><span class="va">mpg</span> <span class="op">-</span> <span class="fu"><a href="https://rdrr.io/r/base/mean.html" class="external-link">mean</a></span><span class="op">(</span><span class="va">mtcars</span><span class="op">$</span><span class="va">mpg</span><span class="op">)</span><span class="op">)</span><span class="op">/</span><span class="fu"><a href="https://rdrr.io/r/stats/sd.html" class="external-link">sd</a></span><span class="op">(</span><span class="va">mtcars</span><span class="op">$</span><span class="va">mpg</span><span class="op">)</span>, <span class="fl">2</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="va">mtcars</span><span class="op">$</span><span class="va">mpg_type</span> <span class="op"><-</span> <span class="fu"><a href="https://rdrr.io/r/base/ifelse.html" class="external-link">ifelse</a></span><span class="op">(</span><span class="va">mtcars</span><span class="op">$</span><span class="va">mpg_z</span> <span class="op"><</span> <span class="fl">0</span>, <span class="st">"below"</span>, <span class="st">"above"</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="va">mtcars</span> <span class="op"><-</span> <span class="va">mtcars</span><span class="op">[</span><span class="fu"><a href="https://rdrr.io/r/base/order.html" class="external-link">order</a></span><span class="op">(</span><span class="va">mtcars</span><span class="op">$</span><span class="va">mpg_z</span><span class="op">)</span>, <span class="op">]</span> <span class="co"># sort</span></span></span>
<span class="r-in"><span><span class="va">mtcars</span><span class="op">$</span><span class="va">car_name</span> <span class="op"><-</span> <span class="fu"><a href="https://rdrr.io/r/base/factor.html" class="external-link">factor</a></span><span class="op">(</span><span class="va">mtcars</span><span class="op">$</span><span class="va">car_name</span>, levels <span class="op">=</span> <span class="va">mtcars</span><span class="op">$</span><span class="va">car_name</span><span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="fu">diverging_lollipop_plt</span><span class="op">(</span>.data <span class="op">=</span> <span class="va">mtcars</span>, .x_axis <span class="op">=</span> <span class="va">car_name</span></span></span>
<span class="r-in"><span>, .y_axis <span class="op">=</span> <span class="va">mpg_z</span><span class="op">)</span></span></span>
<span class="r-plt img"><img src="diverging_lollipop_plt-1.png" alt="" width="700" height="433"></span>
<span class="r-in"><span></span></span>
</code></pre></div>
</div>
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