[R-pkg-devel] Problem with package containing spatial data

[Adam H. Sparks]

Hi Igor,
I’ve a couple packages that have spatial data in them that I maintain. I’ve opted to package up the data as a geopackage file and import it as an {sf} object. Edzer Pebesma suggests this to circumvent changes in the {sf} package from affecting native {sf} objects that are distributed as part of a package. Maybe this is an option for you?

In https://github.com/adamhsparks/extractOz, see /inst/extdata for the geopackage file and https://github.com/adamhsparks/extractOz/blob/main/R/data.R for handling the data importing and making available in the R session on package load.

Best,
Adam

> On 8 Feb 2023, at 10:32 pm, Igor L <igorlaltuf using gmail.com> wrote:
> 
> Hello all,
> 
> I'm developing a package that contains spatial data about public safety in
> Rio de Janeiro.
> 
> The problem is that when I use the usethis::use_data function which
> transforms the shapefile data into a file with the .rda extension, I cannot
> use the geometry attribute to create a map.
> 
> E.g.:
> 
> # Raw-data script:
> 
> spatial_aisp <- sf::st_read('data-raw/shp_aisp/lm_aisp_2019.shp')
> 
> plot(spatial_aisp) # works
> 
> # Same data from .rda file after use usethis::use_data(spatial_aisp,
> overwrite = TRUE)
> 
> x <- ispdata::spatial_aisp
> 
> plot(x) # do not work
> 
> Error message:
> Error in data.matrix(x) :
>  'list' object cannot be coerced to type 'double'
> 
> 
> This is happening with all spatial data in the package. I'm using lazydata:
> true and have already disabled file compression options, but the problem
> persists.
> 
> Any ideas?
> 
> Scripts can be accessed at https://github.com/igorlaltuf/ispdata
> 
> Thanks!
> -- 
> *Igor Laltuf Marques*
> Economist (UFF)
> Master in Urban and Regional Planning (IPPUR-UFRJ)
> Researcher at ETTERN and CiDMob Laboratories
> https://igorlaltuf.github.io/
> 
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> 
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