title: Make an annotation in ggplot with applying styles on the certain symbols
body: <p>I am trying to put the r2 value and p-value in the same annotation in a graph.</p>
  
  <p>The r and the p needs to be italicized with a comma in between the two values so <code>r^2 = 0.26, p = 0.005</code>. </p>
  
  <p>I have looked up suggestions but I can't get everything I want. The first example code gets me everything but the italic p. </p>
  
  <p>I have tried putting paste italic in front of it like I did with the r but it gives me an error and the second script the r and the p are italic but I can't figure out how to put a comma in between them</p>
  
  <pre><code>annotate("text", x=93, y=65, 
           label= "paste(italic(r)^{2}, \" = 0.26, \",p, \" = 0.0008\")", 
           parse=TRUE, size=4)
  </code></pre>
  
  <hr>
  
  <pre><code>annotate("text", x=93, y=65, 
           label= "italic(r)^{2}==0.26~italic(p)==0.0008", 
           parse=TRUE, size=4)
  </code></pre>
  
  <p>I want the r and the p to be italic and I want a comma between them.</p>