Average miles per gallon

This application calculates the average miles per gallon of cars depending on:

• The number of cylinders the car has, it can be selected from 4 to 8
• The number of forward gears, it can be selected from 3 to 5
• If the transmission is manual or automatic, this can be checked

Here is a calculation example frc cars with:

• 4 cylinders
• 4 forward gears
• A manual transmission

  subset1 <- mtcars[which(mtcars$cyl==4),]
  subset2 <- subset1[which(subset1$gear==4),]
  subset3 <- subset2[which(subset2$am==1),]
  MeanMPG <- mean(subset3$mpg)
  MeanMPG

[1] 28.03333

This application gives an idea of the miles per gallon average of cars having a specific number of cylinders, forward gears and being automatic or manual.