title: What does <<- mean in R?
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/2628621/how-do-you-use-scoping-assignment-in-r">How do you use “&lt;&lt;-” (scoping assignment) in R?</a>  </p>
  </blockquote>
  
  
  
  <p>I am reading a pseudocode. I came across with this <code>&lt;&lt;-</code> many times. What is the significance of <code>&lt;&lt;-</code>? What does it mean? And what do we need to consider or be careful with when using the <code>&lt;&lt;-</code> operator?</p>