[R] Mapping of groups of countries

[george brida]

Thanks a lot Jim. I really appreciate your help. Happy new year 2022.
George

On Wed, Dec 29, 2021 at 10:10 PM Jim Lemon <drjimlemon using gmail.com> wrote:

> Hi George,
> This example is obviously a mess, but it shows the basic elements. The
> labels may be placed manually using something like boxed.labels
> (plotrix) with lines connecting the labels to the smaller countries.
> If you want the labels within the countries you will have to use a big
> graphics device.
>
> library(maps)
> map("world")
> countries=c("China","Bangladesh","Egypt","Indonesia","South
> Korea","Nigeria",
>  "Brazil","Pakistan","Philippines","Vietnam","South Africa",
>  "India","Mexico","Turkey")
> countrycol<-c(rep("red",6),rep("blue",4),"green",rep("orange",3))
> for(i in 1:length(countries)) {
>  mapinf<-map(region=countries[i],col=countrycol[i],add=TRUE)
>  xpos<-sum(mapinf$range[1:2])/2
>  ypos<-sum(mapinf$range[3:4])/2
>  text(xpos,ypos,countries[i])
> }
>
>
> Jim
>
> On Thu, Dec 30, 2021 at 7:34 AM george brida <george.brida using gmail.com>
> wrote:
> >
> > Dear R users,
> >
> > I would like to map with R the following countries (with their names on
> the
> > map) as follows: the first group in red composed by China, Bangladesh,
> > Eypt, Indonesia, South Korea, Nigeria. The second group in blue composed
> by
> > Brazil, Pakistan, Philippines, Vietnam.
> >
> > The third group in green solely composed by South Africa.
> >
> > Finally, the fourth group in orange composed by India, Mexico and Turkey.
> >
> > I'd also like a legend that assigns the different colors to the various
> > group.
> > I tried several times with library maps but it seems that I failed to
> find
> > the real setting of xlim and ylim. Can you please help me, I will be very
> > grateful.
> >
> > Best regards
> > George
> >
> >         [[alternative HTML version deleted]]
> >
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>

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