Ruby-fann is a gem that contains bindings to FANN (Fast Artificial Neural Network). FANN is a is a free open source neural network library, which implements multilayer artificial neural networks with support for both fully connected and sparsely connected networks.

The admission data we are using have 3 rows for each example:

1. Result of exam 1 (between 0 and 100)
2. Result of exam 2 (between 0 and 100)
3. Admission (1 for admitted, 0 if not admitted)

The chart displays all the data.

For this example we have allocated 20% of data for testing and 80% for training... well, now you can enter your data and get a prediction.