str_pair_match

string

vector of regular expression which should match exactly two
strings for each element in <code>stringr</code>. If <code>pos</code> is specified,
this rule is relaxed.

pattern

optional pair of integers with positions of the first and second
desired matches, when multiple matches are made by the regular expression

logical scalar, whether to swap the names and values. Default is
not to swap, so the first match becomes the name.

swap

Match a character vector against a regular expression with at least two
parenthetic groupings, returning named vector.

internal

Calculate comorbidities, Charlson and van Walraven
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.

str_pair_match: Match pairs of strings to get named vector

Description

Usage

Arguments