RefManageR (version 1.4.0)

[[.BibEntry: Extract entries from a BibEntry object by index

Description

Operator for extracting BibEntry objects by index.

Usage

# S3 method for BibEntry
[[(x, i, drop = FALSE)

Value

an object of class BibEntry.

Arguments

x

a BibEntry object

i

numeric indices of entries to extract, or a character vector of keys corresponding to the entries to be extracted.

drop

logical, should attributes besides class be dropped from result?

See Also

Other operators: $.BibEntry(), $<-.BibEntry(), +.BibEntry(), [.BibEntry(), [<-.BibEntry(), [[<-.BibEntry(), c.BibEntry()

Examples

if (requireNamespace("bibtex")) {
    file.name <- system.file("Bib", "biblatexExamples.bib", package="RefManageR")
    bib <- suppressMessages(ReadBib(file.name))
    bib[[20:21]]
    bib[c("hyman", "loh")]

    ## Note this is FALSE because [[ does not inherit from the dropped parent entry while [ does.
    identical(bib[1], bib[[1]])
}