[R] Header in read.table() function

[Erik Iverson]

>If you're data.frame had a
> column named 'a', what should
> 
>> mm$a-1
> 
> do? Print out mm$a-1, or subtract 1 from mm$a ?  If you want your
> original matrix back (i.e., object of class matrix), you could just use
> save/load functions.

David found a way to get this in.  I read the file in, converted to 
numeric.

mm$a-1 subtracts 1 from a,

and using
mm$`a-1` prints out the a-1 column...

I stand corrected, and agree that it is probably not worth the trouble.