Binds several scopus_records objects into a single one, renumbering
entry_number across the result and, optionally, dropping duplicates. This is
the safe way to merge separate fetches: plain rbind() would leave duplicate
entry numbers, and c() would return a list.
Usage
scopus_combine(..., dedupe = FALSE)
# S3 method for class 'scopus_records'
c(x, ...)Arguments
- ...
Two or more scopus_records objects, or a single list of them.
- dedupe
Logical. When
TRUE, records sharing a 'Scopus' identifier, or failing that a DOI (compared case-insensitively), are kept once.- x
A scopus_records object (for the
c()method).
Value
A scopus_records tibble. Per-retrieval attributes such as
total_results are not carried over, since they describe a single fetch.
See also
scopus_fetch_plan(), which combines plan cells the same way.
Examples
# Merging a set with itself and de-duplicating recovers the distinct records.
scopus_combine(example_records, example_records, dedupe = TRUE)
#> <scopus_records> 6 records
#> query: "illustrative multi-disciplinary sample"
#> # A tibble: 6 × 9
#> entry_number scopus_id doi title authors year date publication citations
#> <int> <chr> <chr> <chr> <chr> <int> <chr> <chr> <int>
#> 1 1 85000000001 10.1… Geno… Zhang … 2019 2019… Nature 540
#> 2 2 85000000002 10.1… Deep… Kumar … 2020 2020… Nature 210
#> 3 3 85000000003 10.1… Clim… Okafor… 2018 2018… Nature Cli… 122
#> 4 4 85000000004 10.1… Grap… Tanaka… 2021 2021… Advanced M… 45
#> 5 5 85000000005 10.1… Chec… Garcia… 2020 2020… The Lancet… 388
#> 6 6 85000000006 10.1… Obse… Abbott… 2016 2016… Physical R… 4200