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massimoaria / bibliometrix

An R-tool for comprehensive science mapping analysis. A package for quantitative research in scientometrics and bibliometrics.
https://www.bibliometrix.org
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Co-citation analysis #116

Closed rar103 closed 4 years ago

rar103 commented 4 years ago

Hi there, I'm trying to do a bibliometric analysis with your tool and found out a weird error that happens when I try to do a co-citation analysis, from the example provided.

As soon as I use biblioNetwork with network="authors" ` data(scientometrics)

NetMatrix <- biblioNetwork(scientometrics, analysis = "co-citation", network = "references", sep = ";")

net <- networkPlot(NetMatrix, n = 30, type = "kamada", Title = "Co-Citation",labelsize=0.5) ` Says

Error in crossprod(x, y) : requires numeric/complex matrix/vector arguments

And happens with anything but references

massimoaria commented 4 years ago

The error says: "Field CR_AU is not a column name of input data frame"

When you perform a co-citation analysis of authors, the biblioNetwork function needs to analyze a field "CR_AU" containing the list of authors extracted from references (CR). This column field is not standard so it has to be extracted from Cited References (CR) using the function metaTagExtraction: scientometrics <- metaTagExtraction(scientometrics, Field="CR_AU")

and then you can perform an author co-citation analysis NetMatrix <- biblioNetwork(scientometrics, analysis = "co-citation", network = "authors", sep = ";")

net <- networkPlot(NetMatrix, n = 30, type = "kamada", Title = "Co-Citation",labelsize=0.5)