Dear R users, I need to find the coordinates for the point (midpoint) located half way between two pairs of coordinates (lon1,lat1 and lon2,lat2) assuming a straight line between them. What would be the best way? I tried to find an answer in the help archives but without success. I would greatly appreciate any help.
df<- data.frame(lon1=c(-4.568,-4.3980), lat1=c(59.235,56.369), lon2=c(-5.123,-4.698), lat2=c(60.258,59.197) ) Thanking in advance, Mafalda ______________________________________________ R-help@r-project.org mailing list 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.