Dear all, I have two dataframe 1 by latitude and longitude but they always do not match. Is it possible to merge them (e.g. nearest distance)?
# Dataframe 1 structure(list(lat = c(54L, 55L, 51L, 54L, 53L, 50L, 47L, 51L, 49L, 54L), lon = c(14L, 8L, 15L, 7L, 6L, 5L, 13L, 5L, 13L, 11L ), PPP2000_40 = c(4606, 6575, 6593, 7431, 9393, 10773, 11716, 12226, 13544, 14526)), .Names = c("lat", "lon", "PPP2000_40"), row.names = c(6764L, 8796L, 8901L, 9611L, 11649L, 12819L, 13763L, 14389L, 15641L, 16571L), class = "data.frame") # Dataframe 2 structure(list(lat = c(47, 47, 47, 47, 47, 47, 48, 48, 48, 48 ), lon = c(7, 8, 9, 10, 11, 12, 7, 8, 9, 10), GDP = c(19.09982, 13.31977, 14.95925, 6.8575635, 23.334565, 6.485748, 24.01197, 14.30393075, 21.33759675, 9.71803675)), .Names = c("lat", "lon", "GDP"), row.names = c(NA, 10L), class = "data.frame") Thank you so much! Sincerely, Milu [[alternative HTML version deleted]] _______________________________________________ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo