str_match_all

<p><code>perl</code> is taken out if not supported, allows compatibility with older
versions of R. TODO: check for newer <code>stringr</code> function to do this.</p>

internal

Calculate comorbidities, Charlson scores, perform
fast and accurate validation, conversion, manipulation, filtering and
comparison of ICD-9 and ICD-10 codes. This package enables a work flow
from raw lists of ICD codes in hospital databases to
comorbidities. ICD-9 and ICD-10 comorbidity mappings from Quan (Deyo
and Elixhauser versions), Elixhauser and AHRQ included.  Common
ambiguities and code formats are handled.

Jack O Wasey

Tools for Working with ICD-9 and ICD-10 Codes, and Finding
Comorbidities

Jack O. Wasey

William Murphy

Anobel Odisho

Vitaly Druker

Ed Lee

Kevin Ushey

R Core Team 

str_match_all function

return all matches for regular expression — str_match_all

return all matches for regular expression

str_match_all: return all matches for regular expression

Description

Usage

Arguments