Another option you have available is ‘ms_dissolve()’ in the ‘rmapshaper' package (full disclosure - I am the author). The javascript library that powers it (maphsaper[1]) builds topology with a small tolerance to repair slivers and gaps, and thus can often fix issues like this:
require(rnaturalearth) require(sf) library(rmapshaper) world_map <- ne_countries(scale = 'small', returnclass = "sf") # World countries: world_map object.size(world_map) # Dissolve borders within continents with ms_dissolve() world_dissolved <- ms_dissolve(world_map, field = "continent”) plot(world_dissolved) Cheers, Andy Teucher [1] mapshaper: https://github.com/mbloch/mapshaper > On Oct 17, 2019, at 8:47 AM, Marta Rufino <marta.m.ruf...@gmail.com> wrote: > > Thank you very much to all :) > > Barry+Roger contributions sorted the problem for the moment, although in my > mind there are still things to be understood. > Mike, yep, thank you for alerting me of rnaturalearth issues- I was not > aware of it. In this case, I am really interested in the process to > apply in other polygons, not in the data *per se*, but will take this into > account in the future. > > Once I have the doc produced (distribution of world > estuaries/bays/transition waters), I will post on the list :) > > Best wishes, > M. > > [[alternative HTML version deleted]] > > _______________________________________________ > R-sig-Geo mailing list > R-sig-Geo@r-project.org > https://stat.ethz.ch/mailman/listinfo/r-sig-geo _______________________________________________ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo
