[R] reading csv-data

[Johanna Sundvik]

Hi!

I have had this problem for a long time. I have tried to study the manuals and
search the mailing lists, but I can not solve this. I think there has to be one
simple solution to this, but I just can not find it. 

I have saved the data in excel (csv-format). Then I read the data in R e.g.

>data <- read.csv2("example.csv", header=TRUE)

I look the data and it looks ok. E.g

>data
     Mean1   
1   4.4332  
2   8.5113  
3  35.1624 
4   9.1693 
5    2.974 
6  65.1578 
7  43.2241 
8   3.1278 
9   5.3364 
10  3.9767 

However, this "Mean1" is categorical when it should be real numbers.

> Mean1
[1] 4.4332  8.5113  35.1624 9.1693  2.974   65.1578 43.2241 3.1278  5.3364 
Levels: 2.974 3.1278 35.1624 4.4332 43.2241 5.3364 65.1578 8.5113 9.1693

Why R does not understand that this should be real numbers? What am I doing
wrong here? Thanks for your help.

Regards,
Johanna Sundvik