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Color and fill single-color scales for discrete and continuous values,
created using the primary accent color of the xaringanthemer styles.  See
vignette(&quot;ggplot2-themes&quot;) for more information and examples of
xaringanthemer's ggplot2-related functions."><meta property="og:description" content="
Color and fill single-color scales for discrete and continuous values,
created using the primary accent color of the xaringanthemer styles.  See
vignette(&quot;ggplot2-themes&quot;) for more information and examples of
xaringanthemer's ggplot2-related functions."><meta property="og:image" content="https://pkg.garrickadenbuie.com/xaringanthemer/logo.png"><meta name="twitter:card" content="summary"><meta name="twitter:creator" content="@grrrck"><meta name="twitter:site" content="@grrrck"></head><body>
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  <main id="main" class="col-md-9"><div class="page-header">
      <img src="../logo.png" class="logo" alt=""><h1>Themed ggplot2 Scales</h1>
      <small class="dont-index">Source: <a href="https://github.com/gadenbuie/xaringanthemer/blob/main/R/ggplot2.R" class="external-link"><code>R/ggplot2.R</code></a></small>
      <div class="d-none name"><code>scale_xaringan.Rd</code></div>
    </div>

    <div class="ref-description section level2">
    <p><a href="https://lifecycle.r-lib.org/articles/stages.html#maturing" class="external-link"><img src="figures/lifecycle-maturing.svg" alt="[Maturing]"></a></p>
<p>Color and fill single-color scales for discrete and continuous values,
created using the primary accent color of the xaringanthemer styles.  See
<code><a href="../articles/ggplot2-themes.html">vignette("ggplot2-themes")</a></code> for more information and examples of
<span class="pkg">xaringanthemer</span>'s <span class="pkg">ggplot2</span>-related functions.</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">scale_xaringan_discrete</span><span class="op">(</span></span>
<span>  aes_type <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"color"</span>, <span class="st">"colour"</span>, <span class="st">"fill"</span><span class="op">)</span>,</span>
<span>  <span class="va">...</span>,</span>
<span>  color <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  direction <span class="op">=</span> <span class="fl">1</span>,</span>
<span>  inverse <span class="op">=</span> <span class="cn">FALSE</span></span>
<span><span class="op">)</span></span>
<span></span>
<span><span class="fu">scale_xaringan_fill_discrete</span><span class="op">(</span><span class="va">...</span>, color <span class="op">=</span> <span class="cn">NULL</span>, direction <span class="op">=</span> <span class="fl">1</span>, inverse <span class="op">=</span> <span class="cn">FALSE</span><span class="op">)</span></span>
<span></span>
<span><span class="fu">scale_xaringan_color_discrete</span><span class="op">(</span></span>
<span>  <span class="va">...</span>,</span>
<span>  color <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  direction <span class="op">=</span> <span class="fl">1</span>,</span>
<span>  inverse <span class="op">=</span> <span class="cn">FALSE</span></span>
<span><span class="op">)</span></span>
<span></span>
<span><span class="fu">scale_xaringan_colour_discrete</span><span class="op">(</span></span>
<span>  <span class="va">...</span>,</span>
<span>  color <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  direction <span class="op">=</span> <span class="fl">1</span>,</span>
<span>  inverse <span class="op">=</span> <span class="cn">FALSE</span></span>
<span><span class="op">)</span></span>
<span></span>
<span><span class="fu">scale_xaringan_continuous</span><span class="op">(</span></span>
<span>  aes_type <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"color"</span>, <span class="st">"colour"</span>, <span class="st">"fill"</span><span class="op">)</span>,</span>
<span>  <span class="va">...</span>,</span>
<span>  color <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  begin <span class="op">=</span> <span class="fl">0</span>,</span>
<span>  end <span class="op">=</span> <span class="fl">1</span>,</span>
<span>  inverse <span class="op">=</span> <span class="cn">FALSE</span></span>
<span><span class="op">)</span></span>
<span></span>
<span><span class="fu">scale_xaringan_fill_continuous</span><span class="op">(</span></span>
<span>  <span class="va">...</span>,</span>
<span>  color <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  begin <span class="op">=</span> <span class="fl">0</span>,</span>
<span>  end <span class="op">=</span> <span class="fl">1</span>,</span>
<span>  inverse <span class="op">=</span> <span class="cn">FALSE</span></span>
<span><span class="op">)</span></span>
<span></span>
<span><span class="fu">scale_xaringan_color_continuous</span><span class="op">(</span></span>
<span>  <span class="va">...</span>,</span>
<span>  color <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  begin <span class="op">=</span> <span class="fl">0</span>,</span>
<span>  end <span class="op">=</span> <span class="fl">1</span>,</span>
<span>  inverse <span class="op">=</span> <span class="cn">FALSE</span></span>
<span><span class="op">)</span></span>
<span></span>
<span><span class="fu">scale_xaringan_colour_continuous</span><span class="op">(</span></span>
<span>  <span class="va">...</span>,</span>
<span>  color <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  begin <span class="op">=</span> <span class="fl">0</span>,</span>
<span>  end <span class="op">=</span> <span class="fl">1</span>,</span>
<span>  inverse <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 id="arg-aes-type">aes_type<a class="anchor" aria-label="anchor" href="#arg-aes-type"></a></dt>
<dd><p>The type of aesthetic to which the scale is being applied.
One of "color", "colour", or "fill".</p></dd>


<dt id="arg--">...<a class="anchor" aria-label="anchor" href="#arg--"></a></dt>
<dd><p>Arguments passed on to either the <span class="pkg">colorspace</span> scale
functions — one of <code><a href="https://colorspace.R-Forge.R-project.org/reference/scale_colour_discrete_sequential.html" class="external-link">colorspace::scale_color_discrete_sequential()</a></code>,
<code><a href="https://colorspace.R-Forge.R-project.org/reference/scale_colour_continuous_sequential.html" class="external-link">colorspace::scale_color_continuous_sequential()</a></code>,
<code><a href="https://colorspace.R-Forge.R-project.org/reference/scale_colour_discrete_sequential.html" class="external-link">colorspace::scale_fill_discrete_sequential()</a></code>, or
<code><a href="https://colorspace.R-Forge.R-project.org/reference/scale_colour_continuous_sequential.html" class="external-link">colorspace::scale_fill_continuous_sequential()</a></code> — or to
<a href="https://ggplot2.tidyverse.org/reference/continuous_scale.html" class="external-link">ggplot2::continuous_scale</a> or <a href="https://ggplot2.tidyverse.org/reference/discrete_scale.html" class="external-link">ggplot2::discrete_scale</a>.</p></dd>


<dt id="arg-color">color<a class="anchor" aria-label="anchor" href="#arg-color"></a></dt>
<dd><p>A color value, in hex, to override the default color. Otherwise,
the primary color of the resulting scale is chosen from the xaringanthemer
slide styles.</p></dd>


<dt id="arg-direction">direction<a class="anchor" aria-label="anchor" href="#arg-direction"></a></dt>
<dd><p>Direction of the discrete scale. Use values less than 0 to
reverse the direction, e.g. <code>direction = -1</code>.</p></dd>


<dt id="arg-inverse">inverse<a class="anchor" aria-label="anchor" href="#arg-inverse"></a></dt>
<dd><p>If <code>color</code> is not supplied and <code>inverse = TRUE</code>, a primary
color is chosen to work well with the inverse slide styles, namely the
value of <code>inverse_header_color</code></p></dd>


<dt id="arg-begin">begin<a class="anchor" aria-label="anchor" href="#arg-begin"></a></dt>
<dd><p>Number in the range of <code>[0, 1]</code> indicating to which point in the color scale the smallest data value should be mapped.</p></dd>


<dt id="arg-end">end<a class="anchor" aria-label="anchor" href="#arg-end"></a></dt>
<dd><p>Number in the range of <code>[0, 1]</code> indicating to which point in the color scale the largest data value should be mapped.</p></dd>

</dl></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="co"># Requires ggplot2</span></span></span>
<span class="r-in"><span><span class="va">has_ggplot2</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/ns-load.html" class="external-link">requireNamespace</a></span><span class="op">(</span><span class="st">"ggplot2"</span>, quietly <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="kw">if</span> <span class="op">(</span><span class="va">has_ggplot2</span><span class="op">)</span> <span class="op">{</span></span></span>
<span class="r-in"><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></span>
<span class="r-in"><span>  <span class="co"># Saving the theme to a temp file because this is an example</span></span></span>
<span class="r-in"><span>  <span class="va">path_to_css_file</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/tempfile.html" class="external-link">tempfile</a></span><span class="op">(</span>fileext <span class="op">=</span> <span class="st">".css"</span><span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span>  <span class="co"># Create the xaringan theme: dark blue background with teal green accents</span></span></span>
<span class="r-in"><span>  <span class="fu"><a href="style_duo.html">style_duo</a></span><span class="op">(</span></span></span>
<span class="r-in"><span>    primary_color <span class="op">=</span> <span class="st">"#002b36"</span>,</span></span>
<span class="r-in"><span>    secondary_color <span class="op">=</span> <span class="st">"#31b09e"</span>,</span></span>
<span class="r-in"><span>    <span class="co"># Using basic fonts for this example, but the plot theme will</span></span></span>
<span class="r-in"><span>    <span class="co"># automatically use your theme font if you use Google fonts</span></span></span>
<span class="r-in"><span>    text_font_family <span class="op">=</span> <span class="st">"sans"</span>,</span></span>
<span class="r-in"><span>    header_font_family <span class="op">=</span> <span class="st">"serif"</span>,</span></span>
<span class="r-in"><span>    outfile <span class="op">=</span> <span class="va">path_to_css_file</span></span></span>
<span class="r-in"><span>  <span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span>  <span class="co"># Here's some very basic example data</span></span></span>
<span class="r-in"><span>  <span class="va">ex</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/data.frame.html" class="external-link">data.frame</a></span><span class="op">(</span></span></span>
<span class="r-in"><span>    name <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"Couple"</span>, <span class="st">"Few"</span>, <span class="st">"Lots"</span>, <span class="st">"Many"</span><span class="op">)</span>,</span></span>
<span class="r-in"><span>    n <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="fl">2</span>, <span class="fl">3</span>, <span class="fl">5</span>, <span class="fl">7</span><span class="op">)</span></span></span>
<span class="r-in"><span>  <span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span>  <span class="co"># Fill color scales demo</span></span></span>
<span class="r-in"><span>  <span class="fu"><a href="https://ggplot2.tidyverse.org/reference/ggplot.html" class="external-link">ggplot</a></span><span class="op">(</span><span class="va">ex</span><span class="op">)</span> <span class="op">+</span></span></span>
<span class="r-in"><span>    <span class="fu"><a href="https://ggplot2.tidyverse.org/reference/aes.html" class="external-link">aes</a></span><span class="op">(</span><span class="va">name</span>, <span class="va">n</span>, fill <span class="op">=</span> <span class="va">n</span><span class="op">)</span> <span class="op">+</span></span></span>
<span class="r-in"><span>    <span class="fu"><a href="https://ggplot2.tidyverse.org/reference/geom_bar.html" class="external-link">geom_col</a></span><span class="op">(</span><span class="op">)</span> <span class="op">+</span></span></span>
<span class="r-in"><span>    <span class="fu"><a href="https://ggplot2.tidyverse.org/reference/labs.html" class="external-link">ggtitle</a></span><span class="op">(</span><span class="st">"Matching fill scales"</span><span class="op">)</span> <span class="op">+</span></span></span>
<span class="r-in"><span>    <span class="co"># themed to match the slides: dark blue background with teal text</span></span></span>
<span class="r-in"><span>    <span class="fu"><a href="theme_xaringan.html">theme_xaringan</a></span><span class="op">(</span><span class="op">)</span> <span class="op">+</span></span></span>
<span class="r-in"><span>    <span class="co"># Fill color matches teal text</span></span></span>
<span class="r-in"><span>    <span class="fu">scale_xaringan_fill_continuous</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="co"># Color scales demo</span></span></span>
<span class="r-in"><span>  <span class="fu"><a href="https://ggplot2.tidyverse.org/reference/ggplot.html" class="external-link">ggplot</a></span><span class="op">(</span><span class="va">ex</span><span class="op">)</span> <span class="op">+</span></span></span>
<span class="r-in"><span>    <span class="fu"><a href="https://ggplot2.tidyverse.org/reference/aes.html" class="external-link">aes</a></span><span class="op">(</span><span class="va">name</span>, y <span class="op">=</span> <span class="fl">1</span>, color <span class="op">=</span> <span class="va">name</span><span class="op">)</span> <span class="op">+</span></span></span>
<span class="r-in"><span>    <span class="fu"><a href="https://ggplot2.tidyverse.org/reference/geom_point.html" class="external-link">geom_point</a></span><span class="op">(</span>size <span class="op">=</span> <span class="fl">10</span><span class="op">)</span> <span class="op">+</span></span></span>
<span class="r-in"><span>    <span class="fu"><a href="https://ggplot2.tidyverse.org/reference/labs.html" class="external-link">ggtitle</a></span><span class="op">(</span><span class="st">"Matching color scales"</span><span class="op">)</span> <span class="op">+</span></span></span>
<span class="r-in"><span>    <span class="co"># themed to match the slides: dark blue background with teal text</span></span></span>
<span class="r-in"><span>    <span class="fu"><a href="theme_xaringan.html">theme_xaringan</a></span><span class="op">(</span><span class="op">)</span> <span class="op">+</span></span></span>
<span class="r-in"><span>    <span class="co"># Fill color matches teal text</span></span></span>
<span class="r-in"><span>    <span class="fu">scale_xaringan_color_discrete</span><span class="op">(</span>direction <span class="op">=</span> <span class="op">-</span><span class="fl">1</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="op">}</span></span></span>
<span class="r-plt img"><img src="scale_xaringan-1.png" alt="" width="700" height="433"></span>
</code></pre></div>
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