title: Searching for a fast variant to find indices of words in a huge matrix (30000000 elements)
body: <pre><code>stimword.idx &lt;- match(keyword, matrix)
     
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  <p>Duration: 70 sec</p>
  <p>Searching for a fast variant to find indices of words in a huge matrix (30000000 elements). Currently I'm using the <code>match()</code> function. Any suggestions welcome.</p>