Hi All,

I hadn't realized the 'a-1' will open such a can of worms!
Actually, the header elements will look something like 'ABCD-002-234-01D' (instead of 'a-1'). I get the files from somwhere else, so I cannot change how the input file is. 
Should I go ahead with the check.names=FALSE option?



________________________________
From: Erik Iverson <eriki@ccbr.umn.edu>

Cc: r-help@stat.math.ethz.ch
Sent: Wed, February 3, 2010 4:27:11 PM
Subject: Re: [R] Header in read.table() function

>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.



      
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