fulltext (version 2.0)

scopus_search: Scopus search

Description

Scopus search

Usage

scopus_search(
  query = NULL,
  count = 25,
  start = 0,
  type = "search",
  search_type = "scopus",
  facets = NULL,
  view = NULL,
  date = NULL,
  sort = NULL,
  content = NULL,
  subj = NULL,
  key = NULL,
  ...
)
scopus_search_loop(
  query = NULL,
  count = 25,
  start = 0,
  type = "search",
  search_type = "scopus",
  facets = NULL,
  view = NULL,
  date = NULL,
  sort = NULL,
  content = NULL,
  subj = NULL,
  key = NULL,
  ...
)

Arguments

query

(character) query terms, as a single character vector

count

(integer/numeric) results to return: default: 25

start

(integer/numeric) offset value, default: 0

type

(character) type of search, default: search

search_type

(character) search type, default: scopus

facets

(list) facets, see https://dev.elsevier.com/tecdoc_api_facets.html for how to construct facet queries

view

the fields to return, see https://dev.elsevier.com/guides/ScopusSearchViews.htm

date

Represents the date range associated with the search, with the lowest granularity being year. e.g. 2002-2007

sort

Represents the sort field name and order. A plus in front of the sort field name indicates ascending order, a minus indicates descending order. If sort order is not specified (i.e. no + or -) then the order defaults to ascending (ASC). Up to three fields can be specified, each delimited by a comma. The precedence is determined by their order (i.e. first is primary, second is secondary, and third is tertiary). . e.g., "overDate,-title"

content

filter specific categories of content that should be searched/returned. one of: core, dummy, all (default)

subj

the subject area code associated with the content category desired. Note that these subject code mapping vary based upon the environment in which the request is executed. See Details for choices.

key

(character) api key. get a key at https://dev.elsevier.com/index.html

...

curl options passed on to crul::HttpClient

subj choices include

• AGRI: Agricultural and Biological Sciences

• ARTS: Arts and Humanities

• BIOC: Biochemistry, Genetics and Molecular Biology

• BUSI: Business, Management and Accounting

• CENG: Chemical Engineering

• CHEM: Chemistry

• COMP: Computer Science

• DECI: Decision Sciences

• DENT: Dentistry

• EART: Earth and Planetary Sciences

• ECON: Economics, Econometrics and Finance

• ENER: Energy

• ENGI: Engineering

• ENVI: Environmental Science

• HEAL: Health Professions

• IMMU: Immunology and Microbiology

• MATE: Materials Science

• MATH: Mathematics

• MEDI: Medicine

• NEUR: Neuroscience

• NURS: Nursing

• PHAR: Pharmacology, Toxicology and Pharmaceutics

• PHYS: Physics and Astronomy

• PSYC: Psychology

• SOCI: Social Sciences

• VETE: Veterinary

• MULT: Multidisciplinary

Details

Rate limits for search are 20,000 per every 7 days. You likely won't make that many requests in 7 days, but if you do e.g., make 20K in 5 days, then you have to wait 2 days for the clock to reset, than you'll be able to make 20K again.

See https://dev.elsevier.com/api_key_settings.html for rate limit information.

See https://dev.elsevier.com/sc_search_tips.html for help/tips on searching

Examples

# NOT RUN {
res <- scopus_search(query = "ecology")
res

#scopus_search(query = x, type = "abstract")

# looping through
res <- scopus_search_loop(query = "ecology community elk cow")

# using facets
## scopus_search
# res <- scopus_search(query = "ecology", facets = "subjarea(count=5)")
# res
# res$`search-results`$link
# res$`search-results`$entry
# res$`search-results`$facet

## more examples
# x <- scopus_search(query = "ecology", facets = "language(count=4)",
#   count = 1)
# x$`search-results`$facet
# x <- scopus_search(query = "ecology",
#   facets = "pubyear(count=3);doctype();language(count=4)")
# x$`search-results`$facet

## scopus_search_loop
# res <- scopus_search_loop(query = "ecology", facets = "subjarea(count=5)",
#   count = 200)
# res$found
# head(res$results)
# NROW(res$results)
# res$facets

# sort
x <- scopus_search(query = "ecology", sort = "-title")
# }