Calculate the normalized citation score metric
It calculates the normalized citation score for documents, authors and sources using both global and local citations.
normalizeCitationScore(M, field = "documents", impact.measure = "local")
M |
is a bibliographic data frame obtained by |
field |
is a character. It indicates the unit of analysis on which calculate the NCS. It can be equal to |
impact.measure |
is a character. It indicates the impact measure used to rank cluster elements (documents, authors or sources).
It can be |
The document Normalized Citation Score (NCS) of a document is calculated by dividing the actual count of citing items by the expected citation rate for documents with the same year of publication.
The MNCS of a set of documents, for example the collected works of an individual, or published on a journal, is the average of the NCS values for all the documents in the set.
The NGCS is the NCS calculated using the global citations (total citations that a document received considering the whole bibliographic database).
The NLCS is the NCS calculated using the local citations (total citations that a document received from a set of documents included in the same collection).
a dataframe.
## Not run: data(management, package = "bibliometrixData") NCS <- normalizeCitationScore(M, field = "authors", impact.measure = "local") ## End(Not run)
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