title: R linear regression issue : lm.fit(x, y, offset = offset, singular.ok = singular.ok, ...)
body: <p>I try a regression with R.
  I have the following code with no problem in importing the CSV file</p>
  
  <pre><code>    dat &lt;- read.csv('http://pastebin.com/raw.php?i=EWsLjKNN',sep=";")
  dat # OK Works fine
  Regdata &lt;- lm(Y~.,na.action=na.omit, data=dat)
  summary(Regdata)
  </code></pre>
  
  <p>However when I try a regression it's not working. I get an error message:</p>
  
  <pre><code>Erreur dans lm.fit(x, y, offset = offset, singular.ok = singular.ok, ...) : 
    aucun cas ne contient autre chose que des valeurs manquantes (NA)
  </code></pre>
  
  <p>All my CSV file are numbers and if a "cell" is empty I have the "NA" value. Some column are not empty and some other row are sometimes empty witht the NA value... </p>
  
  <p>So, I don't understand why I get an error message even with :</p>
  
  <pre><code>na.action=na.omit
  </code></pre>
  
  <p>PS:Data of the CSV are available at:
  <a href="http://pastebin.com/EWsLjKNN" rel="noreferrer">http://pastebin.com/EWsLjKNN</a></p>