split_stem: Process disease stems

In AJFOWLER/comorbidgroupr: Identify Groups of Comorbid Diseases Associated with Outcomes

Description

Cut disease stems for different number of diseases.

Usage

split_stem(stems, cut_level = 1, maximal = TRUE)

Arguments

stems	character vector of stems to be processed which should each be separated by a semi-colon (;).
cut_level	number indicating the level at which stems should be cut (i.e. the number of diagnoses).
maximal	A logical that true if the 'maximal' stem is to be considered for each record, or if it is to be limited to only records with the same number of diagnoses as cut_level, default of TRUE.

Value

A vector of the stems cut at the correct number of diagnoses.

Examples

stems <- c('4;5-6;3-5-6;;', '4;5-4;;;', '5;5-6;3-5-6;3-5-6-7;')

split_stem(stems, cut_level = 3, maximal = TRUE)

AJFOWLER/comorbidgroupr documentation built on May 11, 2021, 6:01 a.m.