title: R - suppressMessages / suppressWarnings not working
body: <p>I have tried expressions with suppressMessages(expr), suppressWarnings(expr),
  but they keep outputting messages.</p>
  
  <p>eg:</p>
  
  <pre><code>suppressWarnings(ksvm(y~., data=data, type='C-svc', cross=5, kernel=kernel))
  </code></pre>
  
  <p>keeps generating this message.</p>
  
  <blockquote>
    <p>Setting default kernel parameters</p>
  </blockquote>
  
  <p>How do I suppress messages from libraries? Is there a way to do this globally?</p>
  
  <p>Have tried:</p>
  
  <pre><code>{r messages=FALSE, warnings=FALSE}
  </code></pre>