COPD_Emph_der_fun1 {cchsflow} | R Documentation |
COPD_Emph_der_fun1
Description
This is one of 2 functions used to create a derived variable (COPD_Emph_der) that determines if a respondents has either COPD or Emphysema. 2 different functions have been created to account for the fact that different respiratory variables are used across CCHS cycles. This function is for CCHS cycles (2005-2008) that use COPD and Emphysema as a combined variable.
Usage
COPD_Emph_der_fun1(DHHGAGE_cont, CCC_91E, CCC_91F)
Arguments
DHHGAGE_cont |
continuous age variable. |
CCC_91E |
variable indicating if respondent has Emphysema |
CCC_91F |
variable indicating if respondent has COPD |
Value
a categorical variable (COPD_Emph_der) with 3 levels:
respondent is over the age of 35 and has a respiratory condition
respondent is under the age of 35 and has a respiratory condition
respondent does not have a respiratory condition
See Also
Examples
# COPD_Emph_der_fun1() to create values across CCHS cycles
# (2005-2008) COPD_Emph_der_fun1() is specified in
# variable_details.csv along with the CCHS variables and cycles included.
# To transform COPD_Emph_der, use rec_with_table() for each CCHS cycle
# and specify COPD_Emph_der, along with the various respiratory
# variables. Then by using merge_rec_data() you can combine COPD_Emph_der
# across cycles.
library(cchsflow)
COPD2005 <- suppressWarnings(rec_with_table(
cchs2005_p, c(
"DHHGAGE_cont", "CCC_91E", "CCC_91F",
"COPD_Emph_der"
)
))
head(COPD2005)
COPD2007_2008 <- suppressWarnings(rec_with_table(
cchs2007_2008_p, c(
"DHHGAGE_cont", "CCC_91E", "CCC_91F",
"COPD_Emph_der"
)
))
tail(COPD2007_2008)
combined_COPD <- suppressWarnings(merge_rec_data(COPD2005, COPD2007_2008))
head(combined_COPD)
tail(combined_COPD)
[Package cchsflow version 2.1.0 Index]