R help - Dec 2013 - why as.vector can't make x to be a vector?

> x=read.table(text="
+   Qtr1 Qtr2 Qtr3 Qtr4
+ 2010  1.8  8.0  6.0  3.0
+ 2011  2.0 11.0  7.0  3.5
+ 2012  2.5 14.0  8.0  4.2
+ 2013  3.0 15.2  9.5 
5.0",sep="",header=TRUE)
> x
     Qtr1 Qtr2 Qtr3 Qtr4
2010  1.8  8.0  6.0  3.0
2011  2.0 11.0  7.0  3.5
2012  2.5 14.0  8.0  4.2
2013  3.0 15.2  9.5  5.0
> as.vector(x)
     Qtr1 Qtr2 Qtr3 Qtr4
2010  1.8  8.0  6.0  3.0
2011  2.0 11.0  7.0  3.5
2012  2.5 14.0  8.0  4.2
2013  3.0 15.2  9.5  5.0
> class(as.vector(x))
[1] "data.frame"
	[[alternative HTML version deleted]]

On 13-12-15 6:48 AM, ???? wrote:
>> x=read.table(text="
> +   Qtr1 Qtr2 Qtr3 Qtr4
> + 2010  1.8  8.0  6.0  3.0
> + 2011  2.0 11.0  7.0  3.5
> + 2012  2.5 14.0  8.0  4.2
> + 2013  3.0 15.2  9.5  5.0",sep="",header=TRUE)
>> x
>       Qtr1 Qtr2 Qtr3 Qtr4
> 2010  1.8  8.0  6.0  3.0
> 2011  2.0 11.0  7.0  3.5
> 2012  2.5 14.0  8.0  4.2
> 2013  3.0 15.2  9.5  5.0
>> as.vector(x)
>       Qtr1 Qtr2 Qtr3 Qtr4
> 2010  1.8  8.0  6.0  3.0
> 2011  2.0 11.0  7.0  3.5
> 2012  2.5 14.0  8.0  4.2
> 2013  3.0 15.2  9.5  5.0
>> class(as.vector(x))
> [1] "data.frame"
Data frames are lists, which are already vectors.

Duncan Murdoch