MPG Prediction Shiny App

2026-05-11

Title Slide

MPG Prediction Shiny App

Interactive application for predicting car fuel efficiency using the mtcars dataset.

App Features

The application allows users to:

Select car weight
Select horsepower
Choose transmission type
Receive real-time MPG prediction

Dataset Example

##                    mpg cyl disp  hp drat    wt  qsec vs am gear carb
## Mazda RX4         21.0   6  160 110 3.90 2.620 16.46  0  1    4    4
## Mazda RX4 Wag     21.0   6  160 110 3.90 2.875 17.02  0  1    4    4
## Datsun 710        22.8   4  108  93 3.85 2.320 18.61  1  1    4    1
## Hornet 4 Drive    21.4   6  258 110 3.08 3.215 19.44  1  0    3    1
## Hornet Sportabout 18.7   8  360 175 3.15 3.440 17.02  0  0    3    2
## Valiant           18.1   6  225 105 2.76 3.460 20.22  1  0    3    1

The app uses the built-in mtcars dataset in R.

Data Visualization

The plot shows that heavier cars generally have lower MPG.

Conclusion

MPG decreases as weight increases
Transmission affects fuel efficiency
Shiny provides interactive predictions
The app is simple and user friendly