EVOLUTION-MANAGER

Edit File: knitr-html.html

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  <title>An R HTML vignette with knitr</title>
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<p>This is an R HTML vignette. The file extension is <code>*.Rhtml</code>, and
it has to include a special comment to tell R that this file needs to be
compiled by <strong>knitr</strong>:</p>

<pre>&lt;!--
%\VignetteEngine{knitr::knitr}
%\VignetteIndexEntry{The Title of Your Vignette}
--&gt;
</pre>

<p>Now you can write R code chunks:</p>

<div class="chunk" id="cars-demo"><div class="rcode"><div class="source"><pre class="knitr r"><span class="hl kwd">summary</span><span class="hl std">(cars)</span>
</pre></div>
<div class="output"><pre class="knitr r">##      speed           dist    
##  Min.   : 4.0   Min.   :  2  
##  1st Qu.:12.0   1st Qu.: 26  
##  Median :15.0   Median : 36  
##  Mean   :15.4   Mean   : 43  
##  3rd Qu.:19.0   3rd Qu.: 56  
##  Max.   :25.0   Max.   :120
</pre></div>
<div class="source"><pre class="knitr r"><span class="hl std">fit</span><span class="hl kwb">=</span><span class="hl kwd">lm</span><span class="hl std">(dist</span><span class="hl opt">~</span><span class="hl std">speed,</span> <span class="hl kwc">data</span><span class="hl std">=cars)</span>
<span class="hl kwd">summary</span><span class="hl std">(fit)</span>
</pre></div>
<div class="output"><pre class="knitr r">## 
## Call:
## lm(formula = dist ~ speed, data = cars)
## 
## Residuals:
##    Min     1Q Median     3Q    Max 
## -29.07  -9.53  -2.27   9.21  43.20 
## 
## Coefficients:
##             Estimate Std. Error t value Pr(&gt;|t|)    
## (Intercept)  -17.579      6.758   -2.60    0.012 *  
## speed          3.932      0.416    9.46  1.5e-12 ***
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Residual standard error: 15.4 on 48 degrees of freedom
## Multiple R-squared:  0.651,	Adjusted R-squared:  0.644 
## F-statistic: 89.6 on 1 and 48 DF,  p-value: 1.49e-12
</pre></div>
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<p>You can also embed plots, for example:</p>

<p>For package vignettes, you need to encode images in base64 strings using the
<code>knitr::image_uri()</code> function so that the image files are no longer
needed after the vignette is compiled. For example, you can add this chunk in
the beginning of a vignette:</p>

<div class="chunk" id="setup"><div class="rcode"><div class="source"><pre class="knitr r"><span class="hl kwd">library</span><span class="hl std">(knitr)</span>
<span class="hl com"># to base64 encode images</span>
<span class="hl std">opts_knit</span><span class="hl opt">$</span><span class="hl kwd">set</span><span class="hl std">(</span><span class="hl kwc">upload.fun</span> <span class="hl std">= image_uri)</span>
</pre></div>
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