title: Is there a way to use iconv() in R to correctly encode the entire dataframe?
body: <p>I'm working with a new dataset, but after importing it, it shows an incorrect encoding. All the "ã" show up as  something else.</p>
  
  <p>I found a way to fix a column with iconv(), but is there a simple way to use it for all 389 columns?</p>
  
  <p><code>md2016 &lt;- read_delim("~microdados_2016", ";", escape_double = FALSE, trim_ws = TRUE)</code></p>
  
  <pre><code>md2016$v1 &lt;- iconv(md2016$v1, to = "UTF-8"
  </code></pre>