[R] functions st_transform and st_point

[Ben Tupper]

Hi,

Did you run `library(sf)` before calling these functions?

Ben

On Wed, Mar 23, 2022 at 12:51 PM Nick Wray <nickmwray using 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
>
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>
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-- 
Ben Tupper (he/him)
Bigelow Laboratory for Ocean Science
East Boothbay, Maine
http://www.bigelow.org/
https://eco.bigelow.org

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