Re: [R] Hex Decimal Convert

From: John Fox <jfox_at_mcmaster.ca>
Date: Sun, 06 Apr 2008 20:43:07 -0400

Dear Edwin,

On Mon, 7 Apr 2008 01:14:35 +0100
 Edwin Sendjaja <edwin7_at_gmx.net> wrote:
>
> Dear John,
>
> Thank you.
>
> Is there any possibility to get original stored number printed.

R is a programming language, so you could in principle read an input line as character data, break it into its components, and output each component in whatever format you wished. That would require some work. There might be a simpler approach, but I'm not aware of it.

>
> Because i have another coloum like:
>
> Protocol
> "TCP"
The previous example that you send consisted entirely of numeric data and had only one line. Assuming that there are several lines, you could read the data into a data frame via read.table() and exercise some control over how each column is read. See ?read.table. You could then deal separately with the columns.

>
>
> This is gonna cause probleme (as you notice before).

I'm afraid that I didn't notice since there was no character data in your previous example.

>
> I dont really understand what you mean with a list. i am new with R.

It's probably unreasonable to expect to be able to use a programming language without reading something about it. One place to start is with the introductory manual distributed with R, which discusses lists in Section 6.1. Alternatively, you could read one of a number of books on R; many are listed at <http://www.r-project.org/doc/bib/R-books.html>.

Regards,
 John  

>
> Thanks,
>
> Edwin
>
>
> Am Sonntag, 6. April 2008 21:38:19 schrieb John Fox:
> > Dear Edwin,
> >
> > There's a distinction between the way in which a number is stored
> > internally and the way in which it's printed. R is reading the hex
> > numbers correctly but is printing them in decimal. You can assign
> the
> > class "hexmode" to the vector containing the data and then it will
> >
> > print in hex:
> > > data <- c(6565, 0x47780439, 0x00000000, 0x00000000, 0)
> > > data
> >
> > [1] 6565 1199047737 0 0 0
> >
> > > class(data) <- "hexmode"
> > > data
> >
> > [1] "000019a5" "47780439" "00000000" "00000000" "00000000"
> >
> > Notice that the whole vector is printed in hex. If you don't want
> that,
> > then you could put the data into a list with some members of class
> > "hexmode" and others not.
> >
> > I hope this helps,
> > John
> >
> >
> >
> > On Sun, 6 Apr 2008 20:52:20 +0100
> >
> > Edwin Sendjaja <edwin7_at_gmx.net> wrote:
> > > Hello,
> > >
> > > I have a data with hexdecimal. But GNU R convert it to strange
> > > number. How can
> > > I get that hexdecimal showing in the R-table?
> >
> >
>



> >--------------
> >
> > > My Data-Table:
> > > Sender_ID Receiver_ID Other_ID
> > > 6565 0x47780439 0x00000000 0x00000000 0
> >
> >
>

> >-------------
> >
> > > R-Table:
> > >
> > > 6565 1199047737 0 0 0
> > >
> > >
> > >
> > >
> > > Kind Regards,
> > >
> > > Edwin
> > >
> > > ______________________________________________
> > > R-help_at_r-project.org mailing list
> > > 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.
> >
> > --------------------------------
> > John Fox, Professor
> > Department of Sociology
> > McMaster University
> > Hamilton, Ontario, Canada
> > http://socserv.mcmaster.ca/jfox/
> >
> > ______________________________________________
> > R-help_at_r-project.org mailing list
> > 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.
>
> ______________________________________________
> R-help_at_r-project.org mailing list
> 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.


John Fox, Professor
Department of Sociology
McMaster University
Hamilton, Ontario, Canada
http://socserv.mcmaster.ca/jfox/

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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. Received on Mon 07 Apr 2008 - 00:45:53 GMT

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