title: filtering for n char inside a value in r
body: <p>i'm doing sentiment analysis, but I need to filter by n char inside every tweet. I mean:</p>
  
  <pre><code>df &lt;- c("the most beauty", "the most ugly", "you are beauty")
  Library(dplyr)
  df %&gt;%
  filter((n char &gt;3) %in% df)
  </code></pre>
  
  <p>Im expecting a result like: "most beauty", "ugly", "beauty"</p>
  
  <p>I've tried with <code>$str_detect</code> but is useless</p>