Tallies the most common sources or authors across a scopus_records object. It works on records already in memory, so it makes no network request.
Usage
scopus_top(x, by = c("source", "author"), n = 10L)Arguments
- x
A scopus_records tibble.
- by
What to tally:
"source"(the publication titles) or"author". Author strings holding several names separated by"; "are split, so each contributor is counted once per record.- n
The number of rows to return (the top
n).
Value
A tibble of class scopus_top with columns value and n, sorted by
descending count, with ties broken by value in byte order so the result is
reproducible across platforms and locales. Exactly n rows are returned
(fewer if there are fewer distinct values), so values tied at the n-th
place may be cut. The by choice is stored in the by attribute.
Examples
scopus_top(example_records, by = "source")
#> # A tibble: 5 × 2
#> value n
#> * <chr> <int>
#> 1 Nature 2
#> 2 Advanced Materials 1
#> 3 Nature Climate Change 1
#> 4 Physical Review Letters 1
#> 5 The Lancet Oncology 1
scopus_top(example_records, by = "author", n = 5)
#> # A tibble: 5 × 2
#> value n
#> * <chr> <int>
#> 1 Abbott B. 1
#> 2 Garcia M. 1
#> 3 Kumar S. 1
#> 4 Okafor N. 1
#> 5 Tanaka H. 1