title: Error in match.fun(FUN)
body: <p>I have tried to find an answer to this but I have failed frequently. I have a dataframe with a column of strings. I want to count the number of characters in each entry of the column and replace the string column with the counts.</p>
  
  <pre><code>data[,29]=apply(data[,29],nchar())
  
  Out[2]: Error in match.fun(FUN): argument "FUN" is missing, with no default   
  Error in match.fun(FUN): argument "FUN" is missing, with no default
  </code></pre>