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😎 Give your xaringan slides some style
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  53. Color and fill single-color scales for discrete and continuous values,

  54. created using the primary accent color of the xaringanthemer styles.  See

  55. vignette(&quot;ggplot2-themes&quot;) for more information and examples of

  56. xaringanthemer's ggplot2-related functions." />

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  164.     <div class="page-header">

  165.     <h1>Xaringan Themer ggplot2 Scales</h1>

  166.     <small class="dont-index">Source: <a href='https://github.com/gadenbuie/xaringanthemer/blob/master/R/ggplot2.R'><code>R/ggplot2.R</code></a></small>

  167.     <div class="hidden name"><code>scale_xaringan.Rd</code></div>

  168.     </div>

  169. 

  170.     <div class="ref-description">

  171.     <p><strong>Lifecycle:</strong> <a href='https://www.tidyverse.org/lifecycle/#maturing'>Maturing</a></p>

  172. <p>Color and fill single-color scales for discrete and continuous values,

  173. created using the primary accent color of the xaringanthemer styles.  See

  174. <code><a href='../articles/ggplot2-themes.html'>vignette("ggplot2-themes")</a></code> for more information and examples of

  175. <span class="pkg">xaringanthemer</span>'s <span class="pkg">ggplot2</span>-related functions.</p>

  176.     </div>

  177. 

  178.     <pre class="usage"><span class='fu'>scale_xaringan_discrete</span>(

  179.   <span class='kw'>aes_type</span> <span class='kw'>=</span> <span class='fu'><a href='https://rdrr.io/r/base/c.html'>c</a></span>(<span class='st'>"color"</span>, <span class='st'>"colour"</span>, <span class='st'>"fill"</span>),

  180.   <span class='no'>...</span>,

  181.   <span class='kw'>color</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,

  182.   <span class='kw'>direction</span> <span class='kw'>=</span> <span class='fl'>1</span>,

  183.   <span class='kw'>inverse</span> <span class='kw'>=</span> <span class='fl'>FALSE</span>

  184. )

  185. 

  186. <span class='fu'>scale_xaringan_fill_discrete</span>(<span class='no'>...</span>, <span class='kw'>color</span> <span class='kw'>=</span> <span class='kw'>NULL</span>, <span class='kw'>direction</span> <span class='kw'>=</span> <span class='fl'>1</span>, <span class='kw'>inverse</span> <span class='kw'>=</span> <span class='fl'>FALSE</span>)

  187. 

  188. <span class='fu'>scale_xaringan_color_discrete</span>(

  189.   <span class='no'>...</span>,

  190.   <span class='kw'>color</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,

  191.   <span class='kw'>direction</span> <span class='kw'>=</span> <span class='fl'>1</span>,

  192.   <span class='kw'>inverse</span> <span class='kw'>=</span> <span class='fl'>FALSE</span>

  193. )

  194. 

  195. <span class='fu'>scale_xaringan_colour_discrete</span>(

  196.   <span class='no'>...</span>,

  197.   <span class='kw'>color</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,

  198.   <span class='kw'>direction</span> <span class='kw'>=</span> <span class='fl'>1</span>,

  199.   <span class='kw'>inverse</span> <span class='kw'>=</span> <span class='fl'>FALSE</span>

  200. )

  201. 

  202. <span class='fu'>scale_xaringan_continuous</span>(

  203.   <span class='kw'>aes_type</span> <span class='kw'>=</span> <span class='fu'><a href='https://rdrr.io/r/base/c.html'>c</a></span>(<span class='st'>"color"</span>, <span class='st'>"colour"</span>, <span class='st'>"fill"</span>),

  204.   <span class='no'>...</span>,

  205.   <span class='kw'>color</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,

  206.   <span class='kw'>begin</span> <span class='kw'>=</span> <span class='fl'>0</span>,

  207.   <span class='kw'>end</span> <span class='kw'>=</span> <span class='fl'>1</span>,

  208.   <span class='kw'>inverse</span> <span class='kw'>=</span> <span class='fl'>FALSE</span>

  209. )

  210. 

  211. <span class='fu'>scale_xaringan_fill_continuous</span>(

  212.   <span class='no'>...</span>,

  213.   <span class='kw'>color</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,

  214.   <span class='kw'>begin</span> <span class='kw'>=</span> <span class='fl'>0</span>,

  215.   <span class='kw'>end</span> <span class='kw'>=</span> <span class='fl'>1</span>,

  216.   <span class='kw'>inverse</span> <span class='kw'>=</span> <span class='fl'>FALSE</span>

  217. )

  218. 

  219. <span class='fu'>scale_xaringan_color_continuous</span>(

  220.   <span class='no'>...</span>,

  221.   <span class='kw'>color</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,

  222.   <span class='kw'>begin</span> <span class='kw'>=</span> <span class='fl'>0</span>,

  223.   <span class='kw'>end</span> <span class='kw'>=</span> <span class='fl'>1</span>,

  224.   <span class='kw'>inverse</span> <span class='kw'>=</span> <span class='fl'>FALSE</span>

  225. )

  226. 

  227. <span class='fu'>scale_xaringan_colour_continuous</span>(

  228.   <span class='no'>...</span>,

  229.   <span class='kw'>color</span> <span class='kw'>=</span> <span class='kw'>NULL</span>,

  230.   <span class='kw'>begin</span> <span class='kw'>=</span> <span class='fl'>0</span>,

  231.   <span class='kw'>end</span> <span class='kw'>=</span> <span class='fl'>1</span>,

  232.   <span class='kw'>inverse</span> <span class='kw'>=</span> <span class='fl'>FALSE</span>

  233. )</pre>

  234. 

  235.     <h2 class="hasAnchor" id="arguments"><a class="anchor" href="#arguments"></a>Arguments</h2>

  236.     <table class="ref-arguments">

  237.     <colgroup><col class="name" /><col class="desc" /></colgroup>

  238.     <tr>

  239.       <th>aes_type</th>

  240.       <td><p>The type of aesthetic to which the scale is being applied.

  241. One of "color", "colour", or "fill".</p></td>

  242.     </tr>

  243.     <tr>

  244.       <th>...</th>

  245.       <td><p>Arguments passed on to either the <span class="pkg">colorspace</span> scale

  246. functions — one of <code><a href='http://colorspace.R-Forge.R-project.org//reference/scale_colour_discrete_sequential.html'>colorspace::scale_color_discrete_sequential()</a></code>,

  247. <code><a href='http://colorspace.R-Forge.R-project.org//reference/scale_colour_continuous_sequential.html'>colorspace::scale_color_continuous_sequential()</a></code>,

  248. <code><a href='http://colorspace.R-Forge.R-project.org//reference/scale_colour_discrete_sequential.html'>colorspace::scale_fill_discrete_sequential()</a></code>, or

  249. <code><a href='http://colorspace.R-Forge.R-project.org//reference/scale_colour_continuous_sequential.html'>colorspace::scale_fill_continuous_sequential()</a></code> — or to

  250. <a href='https://ggplot2.tidyverse.org/reference/continuous_scale.html'>ggplot2::continuous_scale</a> or <a href='https://ggplot2.tidyverse.org/reference/discrete_scale.html'>ggplot2::discrete_scale</a>.</p></td>

  251.     </tr>

  252.     <tr>

  253.       <th>color</th>

  254.       <td><p>A color value, in hex, to override the default color. Otherwise,

  255. the primary color of the resulting scale is chosen from the xaringanthemer

  256. slide styles.</p></td>

  257.     </tr>

  258.     <tr>

  259.       <th>direction</th>

  260.       <td><p>Direction of the discrete scale. Use values less than 0 to

  261. reverse the direction, e.g. <code>direction = -1</code>.</p></td>

  262.     </tr>

  263.     <tr>

  264.       <th>inverse</th>

  265.       <td><p>If <code>color</code> is not supplied and <code>inverse = TRUE</code>, a primary

  266. color is chosen to work well with the inverse slide styles, namely the

  267. value of <code>inverse_header_color</code></p></td>

  268.     </tr>

  269.     <tr>

  270.       <th>begin</th>

  271.       <td><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></td>

  272.     </tr>

  273.     <tr>

  274.       <th>end</th>

  275.       <td><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></td>

  276.     </tr>

  277.     </table>

  278. 

  279. 

  280.     <h2 class="hasAnchor" id="examples"><a class="anchor" href="#examples"></a>Examples</h2>

  281.     <pre class="examples"><div class='input'><span class='co'># Requires ggplot2</span>

  282. <span class='no'>has_ggplot2</span> <span class='kw'>&lt;-</span> <span class='fu'><a href='https://rdrr.io/r/base/ns-load.html'>requireNamespace</a></span>(<span class='st'>"ggplot2"</span>, <span class='kw'>quietly</span> <span class='kw'>=</span> <span class='fl'>TRUE</span>)

  283. 

  284. <span class='kw'>if</span> (<span class='no'>has_ggplot2</span>) {

  285.   <span class='fu'><a href='https://rdrr.io/r/base/library.html'>library</a></span>(<span class='no'>ggplot2</span>)

  286.   <span class='co'># Saving the theme to a temp file because this is an example</span>

  287.   <span class='no'>path_to_css_file</span> <span class='kw'>&lt;-</span> <span class='fu'><a href='https://rdrr.io/r/base/tempfile.html'>tempfile</a></span>(<span class='kw'>fileext</span> <span class='kw'>=</span> <span class='st'>".css"</span>)

  288. 

  289.   <span class='co'># Create the xaringan theme: dark blue background with teal green accents</span>

  290.   <span class='fu'><a href='style_duo.html'>style_duo</a></span>(

  291.     <span class='kw'>primary_color</span> <span class='kw'>=</span> <span class='st'>"#002b36"</span>,

  292.     <span class='kw'>secondary_color</span> <span class='kw'>=</span> <span class='st'>"#31b09e"</span>,

  293.     <span class='co'># Using basic fonts for this example, but the plot theme will</span>

  294.     <span class='co'># automatically use your theme font if you use Google fonts</span>

  295.     <span class='kw'>text_font_family</span> <span class='kw'>=</span> <span class='st'>"sans"</span>,

  296.     <span class='kw'>header_font_family</span> <span class='kw'>=</span> <span class='st'>"serif"</span>,

  297.     <span class='kw'>outfile</span> <span class='kw'>=</span> <span class='no'>path_to_css_file</span>

  298.   )

  299. 

  300.   <span class='co'># Here's some very basic example data</span>

  301.   <span class='no'>ex</span> <span class='kw'>&lt;-</span> <span class='fu'><a href='https://rdrr.io/r/base/data.frame.html'>data.frame</a></span>(

  302.     <span class='kw'>name</span> <span class='kw'>=</span> <span class='fu'><a href='https://rdrr.io/r/base/c.html'>c</a></span>(<span class='st'>"Couple"</span>, <span class='st'>"Few"</span>, <span class='st'>"Lots"</span>, <span class='st'>"Many"</span>),

  303.     <span class='kw'>n</span> <span class='kw'>=</span> <span class='fu'><a href='https://rdrr.io/r/base/c.html'>c</a></span>(<span class='fl'>2</span>, <span class='fl'>3</span>, <span class='fl'>5</span>, <span class='fl'>7</span>)

  304.   )

  305. 

  306.   <span class='co'># Fill color scales demo</span>

  307.   <span class='fu'><a href='https://ggplot2.tidyverse.org/reference/ggplot.html'>ggplot</a></span>(<span class='no'>ex</span>) +

  308.     <span class='fu'><a href='https://ggplot2.tidyverse.org/reference/aes.html'>aes</a></span>(<span class='no'>name</span>, <span class='no'>n</span>, <span class='kw'>fill</span> <span class='kw'>=</span> <span class='no'>n</span>) +

  309.     <span class='fu'><a href='https://ggplot2.tidyverse.org/reference/geom_bar.html'>geom_col</a></span>() +

  310.     <span class='fu'><a href='https://ggplot2.tidyverse.org/reference/labs.html'>ggtitle</a></span>(<span class='st'>"Matching fill scales"</span>) +

  311.     <span class='co'># themed to match the slides: dark blue background with teal text</span>

  312.     <span class='fu'><a href='theme_xaringan.html'>theme_xaringan</a></span>() +

  313.     <span class='co'># Fill color matches teal text</span>

  314.     <span class='fu'>scale_xaringan_fill_continuous</span>()

  315. 

  316.   <span class='co'># Color scales demo</span>

  317.   <span class='fu'><a href='https://ggplot2.tidyverse.org/reference/ggplot.html'>ggplot</a></span>(<span class='no'>ex</span>) +

  318.     <span class='fu'><a href='https://ggplot2.tidyverse.org/reference/aes.html'>aes</a></span>(<span class='no'>name</span>, <span class='kw'>y</span> <span class='kw'>=</span> <span class='fl'>1</span>, <span class='kw'>color</span> <span class='kw'>=</span> <span class='no'>name</span>) +

  319.     <span class='fu'><a href='https://ggplot2.tidyverse.org/reference/geom_point.html'>geom_point</a></span>(<span class='kw'>size</span> <span class='kw'>=</span> <span class='fl'>10</span>) +

  320.     <span class='fu'><a href='https://ggplot2.tidyverse.org/reference/labs.html'>ggtitle</a></span>(<span class='st'>"Matching color scales"</span>) +

  321.     <span class='co'># themed to match the slides: dark blue background with teal text</span>

  322.     <span class='fu'><a href='theme_xaringan.html'>theme_xaringan</a></span>() +

  323.     <span class='co'># Fill color matches teal text</span>

  324.     <span class='fu'>scale_xaringan_color_discrete</span>(<span class='kw'>direction</span> <span class='kw'>=</span> -<span class='fl'>1</span>)

  325. }</div><div class='img'><img src='scale_xaringan-1.png' alt='' width='700' height='433' /></div><div class='input'>

  326. </div></pre>

  327.   </div>

  328.   <div class="col-md-3 hidden-xs hidden-sm" id="pkgdown-sidebar">

  329.     <nav id="toc" data-toggle="toc" class="sticky-top">

  330.       <h2 data-toc-skip>Contents</h2>

  331.     </nav>

  332.   </div>

  333. </div>

  334. 

  335. 

  336.       <footer>

  337.       <div class="copyright">

  338.   <p>Developed by <a href='https://www.garrickadenbuie.com'>Garrick Aden-Buie</a>.</p>

  339. </div>

  340. 

  341. <div class="pkgdown">

  342.   <p>Site built with <a href="https://pkgdown.r-lib.org/">pkgdown</a> 1.5.1.</p>

  343. </div>

  344. 

  345.       </footer>

  346.    </div>

  347. 

  348.   

  349. 

  350. 

  351.   </body>

  352. </html>

  353.