is_first_edition: First Edition Identification

Description Usage Arguments Details Value Author(s) References Examples

View source: R/is_first_edition.R

Description

Identify potential first editions

Usage

1

Arguments

df

data.frame with the fields: author, title, publication_year

Details

Identifies unique title-author combinations and marks the earliest occurrence as first edition.

Value

Logical vector indicating the potential first editions

Author(s)

Leo Lahti [email protected]

References

See citation("bibliographica")

Examples

1
## Not run: fed <- is_first_edition(df)

rOpenGov/bibliographica documentation built on Nov. 13, 2018, 5:59 a.m.