Re: [R] GIS in R vs QGIS
Do not learn a new software unless you must. I would find a copy of "Geocomputation with R" and skim through it to see if it has figures or chapter/section titles that would suggest that it can do all of the tasks I need. If the answer looks even close to "yes" then I would go that route because the software is more familiar. However now that you have spent time with QGIS, it is all about your guess as to the shortest distance to your goal. Tim -Original Message- From: R-help On Behalf Of Nick Wray Sent: Thursday, September 8, 2022 9:00 AM To: r-help@r-project.org Subject: [R] GIS in R vs QGIS [External Email] A bit of a philosophical question maybe? I am no expert in R but I feel at home in it. On the other hand I have been wrestling with QGIS, buying books on it, finding online guides etc and I'm still finding it really tricky. For my research I need to analyse both topological data (locations of streamflow gauges for example) and vector data such as precipitation or temperature. There seems to be a fair amount of geospatial stuff in R, as well as books like Robin Lovelace's, so I am wondering whether I can throw aside the QGIS stuff and do everything in R with the needed packages etc. It would give me a lot more time, if nothing else. I'd appreciate any thoughts about this Thanks Nick Wray [[alternative HTML version deleted]] __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fstat.ethz.ch%2Fmailman%2Flistinfo%2Fr-helpdata=05%7C01%7Ctebert%40ufl.edu%7Caa3305a6aaa04cf32e9d08da919a4159%7C0d4da0f84a314d76ace60a62331e1b84%7C0%7C0%7C637982388966719768%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7Csdata=GF0ipIoGxF8YzrAM9n4n85cGiwwJfnfLsT1T3ki%2Fs1M%3Dreserved=0 PLEASE do read the posting guide https://nam10.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.r-project.org%2Fposting-guide.htmldata=05%7C01%7Ctebert%40ufl.edu%7Caa3305a6aaa04cf32e9d08da919a4159%7C0d4da0f84a314d76ace60a62331e1b84%7C0%7C0%7C637982388966719768%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7Csdata=C8mYPj3DfshKUjlIN1P7ba24XWWFy6ANegnzgmhVz6I%3Dreserved=0 and provide commented, minimal, self-contained, reproducible code. __ R-help@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.
Re: [R] GIS in R
Hi Nick, First off, I would suggest going to: https://cran.r-project.org/web/views/Spatial.html also have a close look at https://journal.r-project.org/archive/2017/RJ-2017-067/RJ-2017-067.pdf And you might also consider the use of GRASS GIS, which interfaces with R pretty seamlessly: https://grasswiki.osgeo.org/wiki/R_statistics/rgrass7 Best, Tom On Thu, Sep 1, 2022 at 6:50 AM Nick Wray wrote: > I hope that this is an allowable question - for my hydrological research I > need to create and manipulate maps (ideally in raster form), and get > conversant with GIS. I have for example downloaded QGIS but am finding the > sites on it opaque, and more widely I am finding it hard to find useful > sources of information on GIS processing in R. > > Does anyone know of any accessible sites or useful texts on GIS processing > in R? > > Thanks Nick Wray > > [[alternative HTML version deleted]] > > __ > R-help@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. > [[alternative HTML version deleted]] __ R-help@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.
[R] GIS in R
I hope that this is an allowable question - for my hydrological research I need to create and manipulate maps (ideally in raster form), and get conversant with GIS. I have for example downloaded QGIS but am finding the sites on it opaque, and more widely I am finding it hard to find useful sources of information on GIS processing in R. Does anyone know of any accessible sites or useful texts on GIS processing in R? Thanks Nick Wray [[alternative HTML version deleted]] __ R-help@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.
[R] GIS in R?
Hi Iam quite new to R and Iam trying to use it for GIS application. I used the maptools package to load a shapefile WVA-readShapeLines(WVA) and now I would like to fill gaps in the shape file (missing numbers) with the numbers from intersecting lines I have tried with gintersect but I can only get true or false for answer and not the numbers of the intersected lines... For example for the first line gIntersects(WVA[1,],WVA, byid=TRUE) Is there another possibility to do this? Best regards Franz -- View this message in context: http://r.789695.n4.nabble.com/GIS-in-R-tp4671296.html Sent from the R help mailing list archive at Nabble.com. __ 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] GIS in R?
Hi I suggest having a look at the R_sig_geo archives or posting to that list. On Thu, Jul 11, 2013 at 2:53 AM, ElSiebo franz.tscheikner-gr...@uibk.ac.atwrote: Hi Iam quite new to R and Iam trying to use it for GIS application. I used the maptools package to load a shapefile WVA-readShapeLines(WVA) and now I would like to fill gaps in the shape file (missing numbers) with the numbers from intersecting lines I have tried with gintersect but I can only get true or false for answer and not the numbers of the intersected lines... For example for the first line gIntersects(WVA[1,],WVA, byid=TRUE) Is there another possibility to do this? Best regards Franz -- View this message in context: http://r.789695.n4.nabble.com/GIS-in-R-tp4671296.html Sent from the R help mailing list archive at Nabble.com. __ 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. -- Jeffrey W. Riley USGS GAWSC 1770 Corporate Dr. Ste. 500 Norcross, GA 30093 678-924-6682 *NOTE NEW CONTACT INFO* [[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.
