[R-sig-Geo] Using facet_wrap with geom_stars for a stacked raster

[Manuel Spínola]

Thank you very much Edzer.

What about the labels of the stripes?

If I try to change the labels, they come out as NA

r <- read_stars(system.file("external/test.grd", package="raster"))

s1 <- c(r, r*2)

s2 <- merge(s1)

n <- c("raster 01", "raster 02")

ggplot() +
   geom_stars(data = s2) +
   facet_wrap(~attributes, labeller = labeller(attributes = n)) +
   coord_equal()


El mar, 1 jun 2021 a las 10:54, Edzer Pebesma (<
edzer.pebesma using uni-muenster.de>) escribió:

>
>
> On 01/06/2021 18:43, Manuel Spínola wrote:
> > Dear list members,
> >
> > I am trying to use facet_wrap with geom_stars but I don't know how to
> > specify the variable argument in the facet_wrap function (I know is not
> > "band"), and also, how to change the labels of the strip names?
> >
> > r <- read_stars(system.file("external/test.grd", package="raster"))
> >
> > s1 <- c(r, r*2)
> >
> > ggplot() +
> >    geom_stars(data = s1) +
> >    coord_equal() +
> >    facet_wrap(~ band)
> >
>
> Try:
>
> ggplot() +
>    geom_stars(data = merge(s1)) + f
>    facet_wrap(~attributes) +
>    coord_equal()
>
>
> c() binds attributes, merge() merges them into a dimension.
> --
> Edzer Pebesma
> Institute for Geoinformatics
> Heisenbergstrasse 2, 48151 Muenster, Germany
> Phone: +49 251 8333081
>
> _______________________________________________
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>


-- 
*Manuel Spínola, Ph.D.*
Instituto Internacional en Conservación y Manejo de Vida Silvestre
Universidad Nacional
Apartado 1350-3000
Heredia
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