title: R split call to funciton over several lines
body: <p>I wonder if there is a way to split a call to a function in R over several lines, other then using commas or '+' which is not always applicable.
  I am basically looking like Python's '\' escape.</p>
  
  <p>For example, I want to display this line:</p>
  
  <pre><code>PromoterIslands$illumina_probes[bins_with_probes]-tapply(CGIP_to_Probe$subjectHits,CGIP_to_Probe$subjectHits,function(x) length(x))
  </code></pre>
  
  <p>as:</p>
  
  <pre><code>PromoterIslands$illumina_probes[bins_with_probes]
  &lt;-tapply(CGIP_to_Probe$subjectHits,CGIP_to_Probe$subjectHits,
  function(x) length(x))]
  </code></pre>
  
  <p>Is there any way to do this?</p>
  
  <p>Thanks in advance</p>