Factor
  • categorize the data and store it as levels
    • Create Factor
    A <- factor(c("East","West","East","North"))
print(A)

B <- factor(c(1,2,2,3,1,2,3,3,1,2,3,3,1))
print(B)

levels(B) = c('I', 'II', 'III')
print(B)