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I am setting up boolean values for my variables using an if-else statement but is there a better way with less code?

norm.knnN$gearbox[norm.knnN$gearbox=="automatic"] = 1
norm.knnN$gearbox[norm.knnN$gearbox=="manual"] = 0
norm.knnN$gearbox = as.numeric(norm.knnN$gearbox)

norm.knnN$bus= ifelse(norm.knnN$vehicleType=="bus",1,0)
norm.knnN$cabrio= ifelse(norm.knnN$vehicleType=="cabrio",1,0)
norm.knnN$coupe= ifelse(norm.knnN$vehicleType=="coupe",1,0)
norm.knnN$limousine= ifelse(norm.knnN$vehicleType=="limousine",1,0)
norm.knnN$otherCar= ifelse(norm.knnN$vehicleType=="other",1,0)
norm.knnN$small_car= ifelse(norm.knnN$vehicleType=="small_car",1,0)
norm.knnN$station_wagon= ifelse(norm.knnN$vehicleType=="station_wagon",1,0)
norm.knnN$suv= ifelse(norm.knnN$vehicleType=="suv",1,0)
norm.knnN$vehicleType = NULL


norm.knnN$cng= ifelse(norm.knnN$fuelType=="cng",1,0)
norm.knnN$diesel= ifelse(norm.knnN$fuelType=="diesel",1,0)
norm.knnN$electric= ifelse(norm.knnN$fuelType=="electric",1,0)
norm.knnN$hybrid= ifelse(norm.knnN$fuelType=="hybrid",1,0)
norm.knnN$lpg= ifelse(norm.knnN$fuelType=="lpg",1,0)
norm.knnN$otherFuel= ifelse(norm.knnN$fuelType=="other",1,0)
norm.knnN$petrol= ifelse(norm.knnN$fuelType=="petrol",1,0)
norm.knnN$fuelType = NULL


norm.knnN$audi= ifelse(norm.knnN$brand=="audi",1,0)
norm.knnN$bmw= ifelse(norm.knnN$brand=="bmw",1,0)
norm.knnN$mercedes_benz= ifelse(norm.knnN$brand=="mercedes_benz",1,0)
norm.knnN$opel= ifelse(norm.knnN$brand=="opel",1,0)
norm.knnN$volkswagen= ifelse(norm.knnN$brand=="volkswagen",1,0)
norm.knnN$brand = NULL


norm.knnN$notRepairedDamage[norm.knnN$notRepairedDamage=="yes"] = 1
norm.knnN$notRepairedDamage[norm.knnN$notRepairedDamage=="no"] = 0
norm.knnN$notRepairedDamage = as.numeric(norm.knnN$notRepairedDamage)
```
Fernando Varela
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  • 4
  • *Don't* re-ask it, though; flag this one to request migration. Please see our [help/on-topic], toward the end, and also edit it to conform to the requirements for questions on the destination site. – Glen_b Dec 01 '19 at 00:55
  • Can you edit your question and provide a [reproducible example](https://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example) of your dataset ? – dc37 Dec 01 '19 at 03:20

0 Answers0