check_coordinates | R Documentation |
Check if the coordinates are correct.
check_coordinates(xmn, xmx, ymn, ymx)
xmn , xmx , ymn , ymx |
The coordinates defining the study area. |
Return a set of valid coordinates.
check_coordinates(NA, NA, NA, NA)
check_coordinates(-200, 0, 0, 90)
check_coordinates(20, 0, 90, 0)
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