Search datasets in GBIF.

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Description

This function does not search occurrence data, only metadata on the datasets that contain occurrence data.

Usage

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dataset_search(query = NULL, country = NULL, type = NULL,
  keyword = NULL, owningOrg = NULL, publishingOrg = NULL,
  hostingOrg = NULL, publishingCountry = NULL, decade = NULL,
  facet = NULL, facetMincount = NULL, facetMultiselect = NULL,
  limit = 100, start = NULL, pretty = FALSE, return = "all", ...)

Arguments

query

Query term(s) for full text search. The value for this parameter can be a simple word or a phrase. Wildcards can be added to the simple word parameters only, e.g. q=*puma*

country

NOT YET IMPLEMENTED. Filters by country as given in isocodes$gbif_name, e.g. country=CANADA.

type

Type of dataset, options include OCCURRENCE, etc.

keyword

Keyword to search by. Datasets can be tagged by keywords, which you can search on. The search is done on the merged collection of tags, the dataset keywordCollections and temporalCoverages. SEEMS TO NOT BE WORKING ANYMORE AS OF 2016-09-02.

owningOrg

Owning organization. A uuid string. See organizations

publishingOrg

Publishing organization. A uuid string. See organizations

hostingOrg

Hosting organization. A uuid string. See organizations

publishingCountry

Publishing country. See options at isocodes$gbif_name

decade

Decade, e.g., 1980. Filters datasets by their temporal coverage broken down to decades. Decades are given as a full year, e.g. 1880, 1960, 2000, etc, and will return datasets wholly contained in the decade as well as those that cover the entire decade or more. Facet by decade to get the break down, e.g. /search?facet=DECADE&facet_only=true (see example below)

facet

A list of facet names used to retrieve the 100 most frequent values for a field. Allowed facets are: datasetKey, highertaxonKey, rank, status, extinct, habitat, and nameType. Additionally threat and nomenclaturalStatus are legal values but not yet implemented, so data will not yet be returned for them.

facetMincount

Used in combination with the facet parameter. Set facetMincount=# to exclude facets with a count less than #, e.g. http://bit.ly/1bMdByP only shows the type value 'ACCEPTED' because the other statuses have counts less than 7,000,000

facetMultiselect

Used in combination with the facet parameter. Set facetMultiselect=true to still return counts for values that are not currently filtered, e.g. http://bit.ly/19YLXPO still shows all status values even though status is being filtered by status=ACCEPTED

limit

Number of records to return. Default: 100. Maximum: 1000.

start

Record number to start at. Default: 0. Use in combination with limit to page through results.

pretty

Print informative metadata using cat. Not easy to manipulate output though.

return

What to return. One of meta, descriptions, data, facets, or all (Default).

...

Further named parameters, such as query, path, etc, passed on to modify_url within GET call. Unnamed parameters will be combined with config.

Value

A data.frame, list, or message printed to console (using pretty=TRUE).

References

http://www.gbif.org/developer/registry#datasetSearch

Examples

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## Not run: 
# Gets all datasets of type "OCCURRENCE".
dataset_search(type="OCCURRENCE", limit = 10)

# Fulltext search for all datasets having the word "amsterdam" somewhere in
# its metadata (title, description, etc).
dataset_search(query="amsterdam", limit = 10)

# Limited search
dataset_search(type="OCCURRENCE", limit=2)
dataset_search(type="OCCURRENCE", limit=2, start=10)

# Return just descriptions
dataset_search(type="OCCURRENCE", return="descriptions", limit = 10)

# Return metadata in a more human readable way (hard to manipulate though)
dataset_search(type="OCCURRENCE", pretty=TRUE, limit = 10)

# Search by country code. Lookup isocodes first, and use US for United States
isocodes[agrep("UNITED", isocodes$gbif_name),]
dataset_search(country="US", limit = 10)

# Search by decade
dataset_search(decade=1980, limit = 10)

# Faceting
## just facets
dataset_search(facet="decade", facetMincount="10", limit=0)

## data and facets
dataset_search(facet="decade", facetMincount="10", limit=2)

## httr options
library('httr')
dataset_search(facet="decade", facetMincount="10", limit=2, config=verbose())

## End(Not run)

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