Don MacQueen
Lawrence Livermore National Laboratory
7000 East Ave., L-627
Livermore, CA 94550
925-423-1062
On 6/17/16, 1:06 PM, "R-help on behalf of ch.elahe via R-help"
<r-help-bounces at r-project.org on behalf of r-help at r-project.org> wrote:
>Hi all,
>I want to use world map in ggplot2 and show my data on world map. my df
>is:
>
>
> $ COUNTRY : chr "DE" "DE" "FR" "FR" ..
>
> $ ContrastColor : int 9 9 9 9 13 9 9 9 9 ..
>
> $ quant : Factor w/ 4 levels "FAST","SLOW",..I need to
>merge my df with world_map data which is like this:
>
>
> world_map=map_data("world")
> data.frame': 99338 obs. of 6 variables:
> $ long : num -69.9 -69.9 -69.9 -70 -70.1 ...
> $ lat : num 12.5 12.4 12.4 12.5 12.5 ...
> $ group : num 1 1 1 1 1 1 1 1 1 1 ...
> $ order : int 1 2 3 4 5 6 7 8 9 10 ...
> $ region : chr "Aruba" "Aruba" "Aruba" "Aruba" ...
> $ subregion: chr NA NA NA NA ...
>but by merging my df with world map data I get a data frame with zero
>observation in it,I use this command for merging:
>
>
> world_map=merge(world_map,df,by.x="region",by.y="COUNTRY")
> str(world_map)
>
> 'data.frame': 0 obs. of 133 variables:
> $ region : chr
> $ long : num
> $ lat : num
> $ group : num
> $ order : int
> $ subregion : chr
>does anyone know what is the problem of this merging that I am currently
>using?
>thanks for any help!
>Elahe
>
>______________________________________________
>R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
>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.