Generate the desired name(s) as character variables and use those variables as 
the filename when saving it (them).

?paste
?paste0
?sprintf
?format.POSIXct

If you have not converted your timestamps to a time data type yet then you 
probably need to do that. You may be able to hack something together with 
substr, but you won't get the format validation and sorting benefits of working 
with true time data types.

Please read the Posting Guide which warns you to post using plain text email so 
we see what you see.
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Sent from my phone. Please excuse my brevity.

On March 17, 2014 8:05:23 AM PDT, Olivier Charansonney 
<olivier-luc.charanson...@laposte.net> wrote:
>Hello,
>
>I would like to name files (.txt, .pdf or lists (or dataframes) with
>names
>composed from subjects' IDs, dates, and times e.g. 003DE, 03 17 2014
>and
>16:02:30 gives a file named 003DE-031714-160230.txt.
>
>How can I do that?
>
>Thanks for your help.
>
> 
>
>
>       [[alternative HTML version deleted]]
>
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>PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.

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