spatial-analysis code snippets in r

create a dataset with 2 sets of coordinates in latitude and longitude in 4 columns. then using st_as_sf convert these into 2 different geometry columns in r

make a dataset of 2 sets of coordinates in longitude and latitude format, then using st_as_sf convert these into 2 geometry columns in r

make a dataset of 2 sets of coordinates, then using st_as_sf convert these to 2 geometry columns in r