title: matching transaction with %in% in arules package R
body: <p>I need to find transactions matching some rules.
  The following code used to work, but now R recognise <code>%in%</code> from the base package instead from <strong>arules</strong>.</p>
  
  <pre><code>matchRules=function(rules,transactions){
    id.match=which(transactions %in% rules)
    matchedTrx=transactions[id.match]
    summary(matchedTrx)
  
    return(matchedTrx)
  }
  </code></pre>
  
  <p>I tried <code>arules::%in%</code> but it doesn't work.</p>
  
  <p>If I use:</p>
  
  <pre><code>id.match=which(transactions arules::%in% rules)
  </code></pre>
  
  <p>I get Error:</p>
  
  <pre><code>unexpected symbol in "id.match=which(transactions arules"
  </code></pre>
  
  <p>Thanks for your help.</p>