title: Replace a certain value with another
body: <p>I have this <code>x.Rdata</code> file which stores the variable <code>x</code> (11519 entries).
  The data set looks like this:</p>
  
  <pre><code>[1] 8120 8120 4110 8120 4430 4310 8140 4120 8130 8140 1232 4430 8220 8120 3210 1110 8130 8140 
  
  [19]4110 8210 2140 4310 7120 4120 8140 8110 1110 3210 6240 4310 3210 2140 8210 1232 8120 8120 
  
  [37]4310 4430 4120 4120 1231 8110 8140 4120 4110 1110 8220 7120 8120 4110 1110 6230 4120 4120 
  
  [55]8130 8120 8220 1110 1110 4110 4120 8140 8130 4210 4210 4110 6240 1232 1232 1232 4120 4120 
  
  .......
  </code></pre>
  
  <p>I want to replace every entry of the value 1110 with 1310.</p>