This repository has been created to demonstrate some of the issues around using geospatial data with targets.
In particular, I cannot work out how to implement saving a shapefile in targets.
The recommendations in ropensci/targets#1238 provided a solution for rasters, but a similar solution, implemented in format_shapefile did not seem to work:
format_shapefile <- tar_format(
read = function(path) terra::vect(path),
write = function(object, path) {
terra::writeVector(
x = object,
filename = path,
filetype = "ESRI Shapefile",
overwrite = TRUE
)
},
marshal = function(object) terra::wrap(object),
unmarshal = function(object) terra::unwrap(object)
)I got the error:
tar_make(example_shapefile)terra 1.7.55
▶ start target example_shapefile
● built target example_shapefile [0.013 seconds]
Error:
! Error running targets::tar_make()
Error messages: targets::tar_meta(fields = error, complete_only = TRUE)
Debugging guide: https://books.ropensci.org/targets/debugging.html
How to ask for help: https://books.ropensci.org/targets/help.html
Last error: the write() function in tar_format() must not create a directory. Found directories inside the data store where there should only be files: _targets/objects/example_shapefile
I also get the same error when I run
tar_make(example_gadm)Loading required package: terra
terra 1.7.55
▶ start target country_codes
● built target country_codes [0.004 seconds]
▶ start target example_gadm
✖ error target example_gadm
Error:
! Error running targets::tar_make()
Error messages: targets::tar_meta(fields = error, complete_only = TRUE)
Debugging guide: https://books.ropensci.org/targets/debugging.html
How to ask for help: https://books.ropensci.org/targets/help.html
Last error: the write() function in tar_format() must not create a directory. Found directories inside the data store where there should only be files: _targets/objects/example_shapefile
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent