A GUI is an interface that allows users to interact with computers through graphical icons and visual indicators instead of text-based interfaces. GUIs were introduced to make interactive operations more convenient in comparison to the more challenging procedures required by command-line interfaces, which require commands to be typed on a computer keyboard. The actions in a GUI are usually performed through direct manipulation of the graphical elements.
To make the application of neural networks as simple as possible, the toolbox gives us a series of GUIs. Seeing is believing. The main one is the nnstart() function, which opens a window with launch buttons for neural network fitting, pattern recognition, clustering, and time series tools:
>> nnstart
This command opens the Neural Network Start GUI, as shown in the following figure:
