missingData function

Completeness of bibliographic metadata

It calculates the percentage of missing data in the metadata of a bibliographic data frame.

missingData(M)

Arguments

• M: is a bibliographic data frame obtained by convert2df function.

Returns

The function missingData returns a list containing two objects:

allTags		is a data frame including results for all original metadata tags from the collection
mandatoryTags		is a data frame that included only the tags needed for analysis with bibliometrix and biblioshiny.

Details

Each metadata is assigned a status c("Excellent," "Good," "Acceptable", "Poor", "Critical," "Completely missing") depending on the percentage of missing data. In particular, the column status classifies the percentage of missing value in 5 categories: "Excellent" (0

"Poor" (from 20.01

The results of the function allow us to understand which analyses can be performed with bibliometrix and which cannot based on the completeness (or status) of different metadata.

Examples

data(scientometrics, package = "bibliometrixData")
res <- missingData(scientometrics)
print(res$mandatoryTags)