SMKG203_fun {cchsflow}

Age started to smoke daily - daily smoker

Description

This function creates a continuous derived variable (SMKG203_cont) for age started to smoke daily for daily smokers.

Usage

SMKG203_fun(SMK_005, SMKG040)

Arguments

SMK_005

type of smoker presently

SMKG040

age started to smoke daily - daily/former daily smoker

Details

For CCHS 2015-2018, age started to smoke daily was combined for daily and former daily smokers.Previous cycles had separate variables for age started to smoke daily. Type of smoker presently is used to define daily smoker.

Value

value for continuous age started to smoke daily for daily smokers in the SMKG203_cont variable

Examples

 
# Using SMKG203_fun() to derive age started to smoke daily values across 
# CCHS cycles.
# SMKG203_fun() is specified in variable_details.csv along with the 
# CCHS variables and cycles included.

# To transform SMKG203_A across cycles, use rec_with_table() for each
# CCHS cycle and specify SMKG203_A.
# For CCHS 2001-2014, only specify SMKG203_A.
# For CCHS 2015-2018, specify the parameters and SMKG203_A for daily smoker 
# age.

library(cchsflow)

agecigd_2009_2010 <- rec_with_table(
  cchs2009_2010_p, "SMKG203_A")

head(agecigd_2009_2010)

agecigd_2017_2018 <- rec_with_table(
  cchs2017_2018_p,c(
    "SMK_005","SMKG040","SMKG203_A"
  )
)

tail(agecigd_2017_2018)

combined_agecigd <- suppressWarnings(merge_rec_data
(agecigd_2009_2010,agecigd_2017_2018))

head(combined_agecigd)
tail(combined_agecigd)