User Reference:P300Classifier

Synopsis

The P300 Classifier GUI (Graphical User Interface) is a tool that allows to train and test a linear classifier for detection of evoked related potentials collected with BCI2000. This GUI is designed for the analysis of BCI2000 data collected using the P3Speller or P3AV paradigms. The program generates feature weights derived via the Stepwise Linear Regression technique. The specifics of the feature space and training routine can be manipulated using the GUI. The feature weights derived from the GUI can be saved and imported into BCI2000 as a parameter file fragment for online testing. The GUI provides the following functionality to investigators:

Classifier Training

Generates feature weights from BCI2000 P3Speller or P3AV data files

Classifier Testing

Applies current feature weights to BCI2000 P3Speller or P3AV data files and compares the results

Location

http://www.bci2000.org/svn/trunk/src/private/Tools/P300_classifier

Versioning

Author

Cristhian Potes

Source Code Revisions

• Initial development: --
• Tested under: --
• Known to compile under: --
• Broken since: --

Control Panel

The P300 Classifier GUI is composed of three panels: Data, Parameters, and Details.

Data Pane

Data Pane allows the user to:

• Load training and testing data files and an INI file.
• Generate and apply feature weights
• Write a parameter file fragment

• [1] Load Training Data Files:

The two possible sources for the real-time feedback: log-score and real-time display