[R] importing text file with duplicate rows / indexing rows and columns

[grr@grell.mailshell.com]

Thank you so much. I'll tell it not to use the row names.

Also, if you have advice for basic texts for learning the programming 
language, please let me know. I am using Dalgaard's Introductory 
Statistics with R, but would like to find something with more of the 
command line options, regardless of the statistics.

Best wishes,

Graham

On May 15, 2004, at 11:24 PM, Prof Brian Ripley wrote:

> The issue is not `duplicate rows' but duplicated row names.  You asked 
> R
> explicitly to make a column into row names -- if they are not suitable 
> row
> names, don't do that.  You can remove duplicated rows later (see 
> ?unique)
> but you cannot have duplicated row names in a data frame so leave them 
> as
> numbers.
>
>
> On Sat, 15 May 2004 grr at grell.mailshell.com wrote:
>
>> Could somebody advise me about importing a txt file as a frame? I am 
>> using the command:
>>
>> test <- read.delim ("~/docs/perl/expr_ctx.txt2", header=T, sep = 
>> "\t", row.names = 1)
>>
>> This gives me an error because there are duplicate rows.
>>
>> In the txt file, the columns are unique subjects and the rows are
>> variables, so I had planned to transform the file after importing. The
>> first row and column are text labels, which I could either leave in
>> (with duplicate rows) or ask R to remove for me, saving another file
>> with index values. But I can't figure out how to do either of these
>> things.
>
> -- 
> Brian D. Ripley,                  ripley at stats.ox.ac.uk
> Professor of Applied Statistics,  
> http://rd.mailshell.com/www.stats.ox.ac.uk/~ripley/
> University of Oxford,             Tel:  +44 1865 272861 (self)
> 1 South Parks Road,                     +44 1865 272866 (PA)
> Oxford OX1 3TG, UK                Fax:  +44 1865 272595
>
>