[R] add text to the first line of an output file

[Sven E. Templer]

Hi.

You can't.

But using a second file where you first write your header and then
append the original file is a solution. ?cat and ?write.table with a
focus on the 'append' argument should help. you can then use ?unlink
to delete the original file and ?file.rename to rename the second, if
desired.

Best, Sven.

On 22 October 2014 02:32, YIHSU CHEN <yihsuc at gmail.com> wrote:
> Hi guys;
>
> I want to write some text at the first line of an output file.  The output
> file will be used for other software.  In particular, the following text
> "ampl.tab 2 1" needs to be added to the first line of an  df output file.
> As a hypothetic example, the output in text file should be like:
>
> ampl.tab 2 1
> A  B
> 2   3
> 4   6
> 2   0
>
> Thanks for help.
>
> Yihsu
>
>         [[alternative HTML version deleted]]
>
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