| head.BibEntry {RefManageR} | R Documentation |
Prints the first or last entries of a BibEntry object (via message) and returns them invisibly
(via invisible).
## S3 method for class 'BibEntry' head(x, n = 6L, suppress.messages = TRUE, ...) ## S3 method for class 'BibEntry' tail(x, n = 6L, suppress.messages = TRUE, ...)
x |
an object of class BibEntry. |
n |
a single integer. If positive, size for the resulting object: number of elements for a vector (including lists), rows for a matrix or data frame or lines for a function. If negative, all but the n last/first number of elements of x. |
suppress.messages |
boolean; should the head/tail entries be printed via |
... |
arguments to be passed to or from other methods. |
If suppress.messages is FALSE, the head/tail entries are output to the console along
with some additional formatting for the ‘bibtype’ and ‘key’, in addition to
invisibly returning the entries.
an object of class BibEntry.
file <- system.file("Bib", "biblatexExamples.bib", package = "RefManageR")
BibOptions(check.entries = FALSE)
bib <- ReadBib(file)
tail(bib, 2, suppress.messages = FALSE)
bib <- head(bib, 1, suppress.messages = TRUE)