od_create_diag_9: Create a new variable based on patterns.

In injuryepi/overdoser: Overdose data analysis

Description

Create a new variable based on pattern in the argument expr

Usage

od_create_diag_9(data, expr1, colvec1, expr2, colvec2, ignore.case = T,
  perl = T)

Arguments

ignore.case	logical
perl	logical
data:	input data
expr1:	regular expression describing the pattern of interest
colvec1:	indices of variables of interest
expr2:	regular expression describing the pattern of interest
colvec2:	indices of variables of interest

Value

new variable matching the pattern described in the regular expressions

Examples

library(tidyverse)
\thosp_set %>%
\tfilter(year == 2015, quarters(discharge_date) == "Q1") %>%
\tod_create_diag2(., expr1 = "^96501", colvec1 = 1,
\texpr2 = "^E8500", colvec2 = c(1:5)) %>% sample_n(10)

injuryepi/overdoser documentation built on May 12, 2019, 12:05 p.m.