Hello I'm trying to work out ways of manipulating maps in R and have found various potentially useful starter sites, eg https://r-spatial.github.io/sf/reference/st_transform.html p1 = st_point(c(7,52)) p2 = st_point(c(-30,20)) sfc = st_sfc(p1, p2, crs = 4326) sfc st_transform(sfc, 3857) and https://rforjournalists.com/2021/04/10/how-to-plot-a-large-rural-area-using-ordnance-survey-data-in-r/ But when I try to run the example code R tells me that it cannot find function "st_point" (or in the other instance "st_transform") I assumed that these functions were in some package, and searching I found "sf" and "lwgeom" suggested, but installing and loading these does not help. Does anyone know where I can find the wherewithal to make these st_ functions work? Thanks Nick Wray
functions st_transform and st_point
4 messages · Nick Wray, Bert Gunter, Jeff Newmiller +1 more
This is a good site for such searches: https://rdrr.io/ Searching on "st_point" there says it's in the 'geotidy' package on github. Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
On Wed, Mar 23, 2022 at 9:51 AM Nick Wray <nickmwray at gmail.com> wrote:
Hello I'm trying to work out ways of manipulating maps in R and have found various potentially useful starter sites, eg https://r-spatial.github.io/sf/reference/st_transform.html p1 = st_point(c(7,52)) p2 = st_point(c(-30,20)) sfc = st_sfc(p1, p2, crs = 4326) sfc st_transform(sfc, 3857) and https://rforjournalists.com/2021/04/10/how-to-plot-a-large-rural-area-using-ordnance-survey-data-in-r/ But when I try to run the example code R tells me that it cannot find function "st_point" (or in the other instance "st_transform") I assumed that these functions were in some package, and searching I found "sf" and "lwgeom" suggested, but installing and loading these does not help. Does anyone know where I can find the wherewithal to make these st_ functions work? Thanks Nick Wray [[alternative HTML version deleted]]
______________________________________________ R-help at 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.
... and whenever you think "I have a question about spatial statistics in R" you should think "I should ask on the R-sig-geo mailing list"... because, of course you have read the Posting Guide, right?
On March 23, 2022 10:58:38 AM PDT, Bert Gunter <bgunter.4567 at gmail.com> wrote:
This is a good site for such searches: https://rdrr.io/ Searching on "st_point" there says it's in the 'geotidy' package on github. Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Wed, Mar 23, 2022 at 9:51 AM Nick Wray <nickmwray at gmail.com> wrote:
Hello I'm trying to work out ways of manipulating maps in R and have found various potentially useful starter sites, eg https://r-spatial.github.io/sf/reference/st_transform.html p1 = st_point(c(7,52)) p2 = st_point(c(-30,20)) sfc = st_sfc(p1, p2, crs = 4326) sfc st_transform(sfc, 3857) and https://rforjournalists.com/2021/04/10/how-to-plot-a-large-rural-area-using-ordnance-survey-data-in-r/ But when I try to run the example code R tells me that it cannot find function "st_point" (or in the other instance "st_transform") I assumed that these functions were in some package, and searching I found "sf" and "lwgeom" suggested, but installing and loading these does not help. Does anyone know where I can find the wherewithal to make these st_ functions work? Thanks Nick Wray [[alternative HTML version deleted]]
______________________________________________ R-help at 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-help at 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.
Sent from my phone. Please excuse my brevity.
Hi, Did you run `library(sf)` before calling these functions? Ben
On Wed, Mar 23, 2022 at 12:51 PM Nick Wray <nickmwray at gmail.com> wrote:
Hello I'm trying to work out ways of manipulating maps in R and have found various potentially useful starter sites, eg https://r-spatial.github.io/sf/reference/st_transform.html p1 = st_point(c(7,52)) p2 = st_point(c(-30,20)) sfc = st_sfc(p1, p2, crs = 4326) sfc st_transform(sfc, 3857) and https://rforjournalists.com/2021/04/10/how-to-plot-a-large-rural-area-using-ordnance-survey-data-in-r/ But when I try to run the example code R tells me that it cannot find function "st_point" (or in the other instance "st_transform") I assumed that these functions were in some package, and searching I found "sf" and "lwgeom" suggested, but installing and loading these does not help. Does anyone know where I can find the wherewithal to make these st_ functions work? Thanks Nick Wray [[alternative HTML version deleted]]
______________________________________________ R-help at 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.
Ben Tupper (he/him) Bigelow Laboratory for Ocean Science East Boothbay, Maine http://www.bigelow.org/ https://eco.bigelow.org [[alternative HTML version deleted]]