RinAction - R Data Manipulation - recode variables

gistfile1.r

#################################################
##          Recoding variables                 ##
#################################################

# Recoding categorical variable
leadership$agecat[leadership$age > 75] <- "Elder"
leadership$agecat[leadership$age > 45 & 
  leadership$age <= 75] <- "Middle Aged"
leadership$agecat[leadership$age <= 45] <- "Young"

# Using within() function (better way)

leadership <- within(leadership, {
  agecat <- NA
  agecat[age > 75] <- "Elder"
  agecat[age >= 55 & age <= 75] <- "Middle Aged"
  agecat[age < 55] <- "Young"
})

# recode() function in the "car" package