[R] Converting AIS Message to Number

[Jim Lemon]

Hi Paul,
For your first question:

max(file.info(".")$mtime)
[1] "2019-12-21 21:04:19 AEDT"

As for the second, I didn't know what an AIS file was, so I googled
it. I still don't know, so I don't have a clue how to turn a string
like that into a number.

Jim

On Tue, Dec 24, 2019 at 5:14 AM Paul Bernal <paulbernal07 using gmail.com> wrote:
>
> Dear friends,
>
> Hope you are doing great. I would like to process an AIS file (which comes
> in either a .txt or .csv format). The AIS file is contained in a specific
> path, say C:/AISFiles/File.txt. The file contains messages like the
> following:
> !AIVDM,2,1,2,A,5EPtgd42CRtIADNU using N0<E98v1 using TM8F222222220m1HB586R`0?0kk3k`40CP,0*2D,1532995201
> (all of this is a single message).
>
> Is there a way to make R automatically retrieve the latest file saved on
> the path, take each message and convert it to a number?
>
> Best regards,
>
> Paul
>
>         [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.