title: the ' character makes the result of importing csv file incorrect
body: <p>I am working on a particular csv file, which have 20310 rows. I import the file using
  <code>Dat&lt;-data.frame(Read.table(“data.csv”,sep=”,”,header=T))</code>   However, the generated Dat only has less than 20000 rows. It turns out that after removing the character <code>‘</code> from the csv file, the generated Dat will have correct number of rows. I only want to know why it happens? Is there a way to correctly keeping all the rows while keeping those <code>‘</code></p>