is_pubmed_id: Is a string a PubMed ID?
Description
Find which strings are valid PubMed IDs (returns TRUE
). PubMed IDs are
tested against the following regular expression: ^\\d+$
.
Usage
is_pubmed_id(str, convert_NA_to_FALSE = TRUE)
Arguments
- str
A character vector of strings.
- convert_NA_to_FALSE
Whether to treat NA
as NA
(convert_NA_to_FALSE = FALSE
) or whether to return FALSE
when
an NA
is found (convert_NA_to_FALSE = TRUE
).