Return the latest assessments with a given research needed (e.g., Taxonomy or Population trends). These research codes correspond to the IUCN Red List Research Needed Classification Scheme (v1.0).
Usage
rl_research(
code = NULL,
key = NULL,
parse = TRUE,
all = TRUE,
page = 1,
quiet = FALSE,
...
)
rl_research_(code = NULL, key = NULL, all = TRUE, page = 1, quiet = FALSE, ...)
Arguments
- code
(character) The code of the research type to look up. If not supplied, a list of all research types will be returned.
- key
(character) An IUCN API token. See
rl_use_iucn()
.- parse
(logical) Whether to parse the output to list (
FALSE
) or, where possible, data.frame (TRUE
). Default:TRUE
.- all
(logical) Whether to retrieve all results at once or not. If
TRUE
we do the paging internally for you and bind all of the results together. IfFALSE
, only a single page of results will be retrieved.- page
(integer/numeric) Page to get if
all
isFALSE
. Default: 1. Each page returns up to 100 records. Paging is required because it's too much burden on a server to just "get all the data" in one request.- quiet
(logical) Whether to suppress progress for multi-page downloads or not. Default:
FALSE
(that is, give progress). Ignored ifall = FALSE
.- ...
Includes the following filters that are supported by the API endpoint (refer to the API docs for more information):
year_published
: (integer) Set this to return only assessments from a given year.latest
: (logical) Set this toTRUE
to return only the latest assessment for each taxon.scope_code
: (integer) Set this to return only assessments from a particular scope (e.g.,1
for Global,2
for Europe). This is similar to theregion
argument of the old Red List API and old versions of rredlist.
Also supports any curl options passed to the GET request via HttpClient.
Value
A list unless using a function with a trailing underscore, in which case json as character string is returned.
References
API docs at https://api.iucnredlist.org/.
See also
Assessments by conservation actions or research needed:
rl_actions()