title: How to call a R program from another R program?
body: <p>Is it possible to call a R program with in a R program?</p>
  
  <p>Say for example, I am looking for something like this:</p>
  
  <pre><code>If condition == X{
     CALL "Pgm A"
    } else {
       CALL "Pgm B"
   }
  </code></pre>
  
  <p>This kind of syntax I have used in C. Is there a way similar in R?</p>
  
  <p>Thank you. </p>