The demo data loaded is trying to model if an Iris plant is of type Versicola, based on four measurements of the petal and sepal.
 
Add Neuron
Press this button to add a neuron to the neural network. The diagram will change to represent the current network architecture as neurons are added or removed.
As the model is learning, the classification success rates are displayed. This shows that of the 150 examples, of which 50 are Versicola, the model has correctly classified 149 of them.