title: Find a string in another string in R
body: <p>I want to find a string within another string in R.  The strings are as follows.  I want to be able to match string a to string b as and the out put should be <code>a == b</code> which returns TRUE</p>
  
  <pre><code>a &lt;- "6250;7250;6251"
  b &lt;- "7250"
  a == b                 #FALSE
  </code></pre>