Write a new attribute value to an EBV netCDF. Not all attributes can be changed. Some are always created automatically, e.g. the attributes belonging to the crs, time and var_entity datasets. In this case you have to re-create the netCDF file.
ebv_attribute(
filepath,
attribute_name,
value,
levelpath = NULL,
verbose = TRUE
)Character. Path to the netCDF file.
Character. Name of the attribute that should be changed.
New value that should be assigned to the attribute.
Character. Default: NULL. Indicates the location of the attribute. The default means that the attribute is located at a global level. If the attribute is located at the datacubelevel just add the datacubepath, e.g. metric_1/ebv_cube. For the metric level the value may be 'metric_1' or 'scenario_1/metric_1'. This path depends on whether the netCDF hierarchy has scenarios or not.
Logical. Default: TRUE. Turn off additional prints by setting it to FALSE.
Adds the new value to the attribute. Check your results using
ebv_properties().
You can change the ebv_class and the ebv_name. In this case you need to change the ebv_class first. Don't forget to change the ebv_name accordingly!
#set path to EBV netCDF file <-
system.file(file.path("extdata","baisero_spepop_id5_20220405_v1_empty.nc"),
package="ebvcube")
#> [1] "C:/R/git_repositories/ebvcube/inst/extdata/baisero_spepop_id5_20220405_v1_empty.nc"
if (FALSE) {
try({
#change the standard_name of the metric
attribute1 <- 'standard_name'
value1 <- 'habitat availability'
level1 <- 'scenario_1/metric_1'
ebv_attribute(filepath = file, attribute_name = attribute1,
value = value1, level = level1)
#change the units of the ebv_cube
attribute2 <- 'units'
value2 <- 'Land-use of 5,090 mammals calculated in sqkm'
level2 <- 'scenario_1/metric_1/ebv_cube' #equal to the datacubepath
ebv_attribute(filepath = file, attribute_name = attribute2,
value = value2, level = level2)
#change the name of the creator at the global level
attribute3 <- 'creator_name'
value3 <- 'Jane Doe'
ebv_attribute(filepath = file, attribute_name = attribute3,
value = value3)
}, TRUE)
}