Displaying 1 result from an estimated 1 matches for "gpw_pop_density_hd_1995a".
2008 Jul 15
3
Melt (reshape) question
...39;ve done,
and maybe you someone spot a fundamental error of mine, or something that
I'm missing.
columnnames <- sprintf("%.2f", seq(from = -179.75, to = 179.75, length = 720))
rnames <- sprintf("%.2f", seq(from = 89.75, to = -89.75, length = 360))
read.table("gpw_pop_density_hd_1995a.asc", colClasses = "numeric", na = "-99") -> PopDens
colnames <- columnnames
rownames <- rnames
library(reshape)
PopDens$Latitude <- rownames
PopDens.long <- melt(PopDens, id.var = "Latitude", na.rm = TRUE)
names(PopDens.long) <- c("Lat...