Re: [R] syntax for reading into R
we haven't had time to create the file again, yet, but thanx also for the great tip about this special mailing list! marion 2012/1/3 Barry Rowlingson > On Tue, Jan 3, 2012 at 10:54 AM, Marion Wenty > wrote: > > hello barry, > > > > thank you very much for your help! > > > > we managed to do what you said and it basicaly worked - there only is a > > problem with our file, but we will create the file again and then it > should > > work completely. i will keep you posted how it turned out. thanks again! > > Great - you might get more help from the R-sig-geo mailing list, > where we tend to talk about spatial data a bit more than on R-help! > > Barry > [[alternative HTML version deleted]] __ R-help@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.
Re: [R] syntax for reading into R
hello barry,
thank you very much for your help!
we managed to do what you said and it basicaly worked - there only is a
problem with our file, but we will create the file again and then it should
work completely. i will keep you posted how it turned out. thanks again!
marion
2012/1/2 Barry Rowlingson
> On Mon, Jan 2, 2012 at 3:54 PM, Barry Rowlingson
> wrote:
>
> > That looks suspiciously like a chunk of a GPX format file - GPS
> > tracks, that kind of thing. Am I right?
> >
> > If so, then get the rgdal package, and read it in. You'll end up with
> > a spatial data frame of some kind from which you can get the points
> > and times.
> >
> > http://en.wikipedia.org/wiki/GPS_eXchange_Format
>
> Specifically, if I put that snippet of yours into a GPX file, I can do:
>
> > trk= readOGR("m.gpx","track_points")
>
> > trk
> coordinates track_fid track_seg_id track_seg_point_id ele
> 1 (16.343, 48.272) 00 0 387
> 2 (16.3436, 48.2719) 00 1 381
>time magvar geoidheight name cmt desc src link1_href
> 1 2012/01/01 15:32:03+00 NA NA
> 2 2012/01/01 15:32:34+00 NA NA
> link1_text link1_type link2_href link2_text link2_type sym type fix sat
> 1 9
> 2 9
> hdop vdop pdop ageofdgpsdata dgpsid
> 1 NA NA NANA NA
> 2 NA NA NANA NA
>
> - obviously there's a lot of stuff there you don't need, so you can do:
>
> > trk@data=trk@data[,c("ele","time","sat")]
> > trk
> coordinates ele time sat
> 1 (16.343, 48.272) 387 2012/01/01 15:32:03+00 9
> 2 (16.3436, 48.2719) 381 2012/01/01 15:32:34+00 9
>
> Barry
>
[[alternative HTML version deleted]]
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Re: [R] syntax for reading into R
On Mon, Jan 2, 2012 at 3:54 PM, Barry Rowlingson
wrote:
> That looks suspiciously like a chunk of a GPX format file - GPS
> tracks, that kind of thing. Am I right?
>
> If so, then get the rgdal package, and read it in. You'll end up with
> a spatial data frame of some kind from which you can get the points
> and times.
>
> http://en.wikipedia.org/wiki/GPS_eXchange_Format
Specifically, if I put that snippet of yours into a GPX file, I can do:
> trk= readOGR("m.gpx","track_points")
> trk
coordinates track_fid track_seg_id track_seg_point_id ele
1 (16.343, 48.272) 00 0 387
2 (16.3436, 48.2719) 00 1 381
time magvar geoidheight name cmt desc src link1_href
1 2012/01/01 15:32:03+00 NA NA
2 2012/01/01 15:32:34+00 NA NA
link1_text link1_type link2_href link2_text link2_type sym type fix sat
1 9
2 9
hdop vdop pdop ageofdgpsdata dgpsid
1 NA NA NANA NA
2 NA NA NANA NA
- obviously there's a lot of stuff there you don't need, so you can do:
> trk@data=trk@data[,c("ele","time","sat")]
> trk
coordinates ele time sat
1 (16.343, 48.272) 387 2012/01/01 15:32:03+00 9
2 (16.3436, 48.2719) 381 2012/01/01 15:32:34+00 9
Barry
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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.
Re: [R] syntax for reading into R
On Mon, Jan 2, 2012 at 3:31 PM, Marion Wenty wrote: . > > 387 > 2012-01-01T15:32:03Z > 9 > > > 381 > 2012-01-01T15:32:34Z > 9 > > ... > > now we would like to create a text file looking like the following, in > order to being able to read it into R afterwards. > > -> > > lat;lon;ele;time;sat > 48.272000;16.342984;387;2012-01-01T15:32:03Z;9 > 48.271909;16.343563;381;2012-01-01T15:32:34Z;9 > ... > > does anyone know how to do this? That looks suspiciously like a chunk of a GPX format file - GPS tracks, that kind of thing. Am I right? If so, then get the rgdal package, and read it in. You'll end up with a spatial data frame of some kind from which you can get the points and times. http://en.wikipedia.org/wiki/GPS_eXchange_Format Barry __ R-help@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] syntax for reading into R
dear users, we have got the following question: we have got a text-file looking like this: ... 387 2012-01-01T15:32:03Z 9 381 2012-01-01T15:32:34Z 9 ... now we would like to create a text file looking like the following, in order to being able to read it into R afterwards. -> lat;lon;ele;time;sat 48.272000;16.342984;387;2012-01-01T15:32:03Z;9 48.271909;16.343563;381;2012-01-01T15:32:34Z;9 ... does anyone know how to do this? thank you very much for your help in advance. marion [[alternative HTML version deleted]] __ R-help@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.
