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Compute local citation scores

Source: R/historiograph.R
local_citations.Rd

Counts how many times each document is cited by other documents within the dataset.

Usage

local_citations(
  data,
  references = "references",
  sep = ";",
  strip_quotes = TRUE,
  id = NULL
)

Arguments

data

A data frame with id and a references column (list-column or delimited string). Optionally year, title, journal, doi, cited_by_count.

references

Character. Name of the column containing cited references. Default "references".

sep

Character. Separator used to split the references column when it is a plain character column. Default ";".

strip_quotes

Logical. If TRUE (default), surrounding quote characters are removed from each reference.

id

Optional. Name of the column to use as the work identifier. If NULL (default), an existing id column is used when present, otherwise row numbers are used.

Value

A data frame with columns:

id

Document identifier.

lcs

Local Citation Score: times cited within the dataset.

gcs

Global Citation Score: cited_by_count if available.

Plus any metadata columns present in the input (title, year, journal, doi).

Examples

data(biblio_data)
local_citations(biblio_data)
#>     id lcs gcs year                                         title
#> 1   W1   7  45 2018 Co-citation analysis of scientific literature
#> 2   W2   4  32 2019    Bibliographic coupling and research fronts
#> 3   W3   2  18 2020          Fractional counting in bibliometrics
#> 4   W5   1  12 2021      Community detection in citation networks
#> 5   W4   0  55 2019   Network analysis of scholarly communication
#> 6   W6   0   8 2020            Author name disambiguation methods
#> 7   W7   0  22 2018                 Keyword co-occurrence mapping
#> 8   W8   0   5 2022            Temporal patterns in citation data
#> 9   W9   0  38 2019           Normalization of co-occurrence data
#> 10 W10   0  15 2021          Mapping scientific knowledge domains
#>                         journal             doi
#> 1                Scientometrics  10.1000/test.1
#> 2       Journal of Informetrics  10.1000/test.2
#> 3                Scientometrics  10.1000/test.3
#> 4       Journal of Informetrics  10.1000/test.5
#> 5                        JASIST  10.1000/test.4
#> 6                Scientometrics  10.1000/test.6
#> 7                        JASIST  10.1000/test.7
#> 8  Quantitative Science Studies  10.1000/test.8
#> 9                        JASIST  10.1000/test.9
#> 10      Journal of Informetrics 10.1000/test.10