| extract_generic {medExtractR} | R Documentation |
Extract Generic Entities From Phrase
Description
This function searches a phrase for the position and length of expressions specified in a dictionary. This is called within other main functions of the package and generally not intended for use on its own.
Usage
extract_generic(phrase, dict)
Arguments
phrase |
Text to search. |
dict |
data.frame, the first column should contain expressions to find. These can be regular expressions or exact phrases. |
Details
extract_generic is used to extract entities that are
identified with an associated dictionary of phrases or regular expressions,
such as dose change, frequency, intake time, route, or duration in
medExtractR and medExtractR_tapering, as well as
dose schedule, time keyword, transition, and preposition in medExtractR_tapering. This function
is called within extract_entities.
Value
A numeric matrix with position and expression length.
Examples
data(frequency_vals)
extract_generic("take two every day", dict = frequency_vals)
extract_generic("take two every morning",
dict = data.frame(c("morning", "every morning")))