regexec32

<p>TODO: deprecate this as we won't support ancient R versions indefinitely.</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 

regexec32 function

<code>regexec</code> which accepts <code>perl</code> argument even in older R — regexec32

<code>regexec</code> which accepts <code>perl</code> argument even in older R

regexec32: `regexec` which accepts `perl` argument even in older R

Description

Usage

Arguments