title: Euro-Symbol in Plot
body: <p>I want my "main" and my "sub" to contain the Euro-Sign "€".
  Rstudio is displaying the Euro-Sign perfectly, meanwhile my saved pdf-Plot  is displaying "..." instead of "€".</p>
  
  <p>Can you help me? What am I doing wrong?</p>
  
  <p>Here's a minimal example: </p>
  
  <pre><code>Euro &lt;- "\u20AC"
  
  pdf("test.pdf")
  plot(1:10,main=paste("Gained money in",Euro,sep=" "), 
  xlab="Day",ylab=paste("Money in",Euro,sep=" "))
  </code></pre>
  
  <p>I've already found out that the problem appears to be the pdf-format, because png is working totally fine. Converting it later on to pdf with "convert" in bash is possible, but the actual plot needs the high pdf-resolution.  </p>
  
  <p>Thanks!</p>