I try a regression with R.
I have the following code with no problem in importing the CSV file

```
    dat <- read.csv('http://pastebin.com/raw.php?i=EWsLjKNN',sep=";")
dat # OK Works fine
Regdata <- lm(Y~.,na.action=na.omit, data=dat)
summary(Regdata)

```

However when I try a regression it's not working. I get an error message:

```
Erreur dans lm.fit(x, y, offset = offset, singular.ok = singular.ok, ...) : 
  aucun cas ne contient autre chose que des valeurs manquantes (NA)

```

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... 

So, I don't understand why I get an error message even with :

```
na.action=na.omit

```

PS:Data of the CSV are available at:
<http://pastebin.com/EWsLjKNN>