User Tutorial:P300 GUI for Offline Analysis Tutorial - Revision history

Jhill at 18:41, 30 January 2012

2012-01-30T18:41:07Z

← Older revision		Revision as of 18:41, 30 January 2012
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			'''Note''':
			This page talks about the Matlab-based P300GUI tool, which is now outdated, as of BCI2000 v3.0. It is still available at
			http://{{SERVERNAME}}/svn/tags/BCI2000.v2.1/src/contrib/Tools/P300GUI
			but is no longer under development. It has been superseded by the standalone [[User Reference:P300Classifier\|P300Classifier tool]], which is part of the BCI2000 core distribution. There are minor differences between the two user interfaces.



	[[Image:P300_GUI.PNG\|right\|700x600px]]		[[Image:P300_GUI.PNG\|right\|700x600px]]

Sbriskin at 02:31, 15 January 2009

2009-01-15T02:31:36Z

← Older revision		Revision as of 02:31, 15 January 2009
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	**Set ''InterpretMode'' → <tt>online free mode</tt>		**Set ''InterpretMode'' → <tt>online free mode</tt>
	**Make sure the ''DisplayResults'' box is checked		**Make sure the ''DisplayResults'' box is checked
			**Click on '''Target Matrix,''' and scroll to the bottom:
			***In the first column replace <tt>9</tt> with <tt>BS</tt>
			***In the second column replace <tt>9</tt> with <tt><BS></tt>
	*Click '''Save Parameters''' and name as you see fit. Typically this parameter file would be <tt>P300_<Your Amplifier>_<Volunteer's Intials>_Free_Spelling.prm</tt> This file is now the file used for that volunteer in later P300 Spelling sessions		*Click '''Save Parameters''' and name as you see fit. Typically this parameter file would be <tt>P300_<Your Amplifier>_<Volunteer's Intials>_Free_Spelling.prm</tt> This file is now the file used for that volunteer in later P300 Spelling sessions

Sbriskin at 18:14, 14 January 2009

2009-01-14T18:14:29Z

← Older revision		Revision as of 18:14, 14 January 2009
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	*Click '''Save Parameters''' and name as you see fit. Typically this parameter file would be <tt>P300_<Your Amplifier>_<Volunteer's Intials>_Free_Spelling.prm</tt> This file is now the file used for that volunteer in later P300 Spelling sessions		*Click '''Save Parameters''' and name as you see fit. Typically this parameter file would be <tt>P300_<Your Amplifier>_<Volunteer's Intials>_Free_Spelling.prm</tt> This file is now the file used for that volunteer in later P300 Spelling sessions

	For full details regarding the P300 GUI, the User's Guide is available [[P300_GUI_Guide~~.pdf~~\|here.]]		For full details regarding the P300 GUI, the User's Guide is available [[P300_GUI_Guide\|here.]]

	To continue onto performing P300 spelling experiments, continue to [[User Tutorial:Performing a P300 Spelling Session\|Performing a P300 Spelling Session]].		To continue onto performing P300 spelling experiments, continue to [[User Tutorial:Performing a P300 Spelling Session\|Performing a P300 Spelling Session]].

Sbriskin at 17:05, 12 January 2009

2009-01-12T17:05:23Z

← Older revision		Revision as of 17:05, 12 January 2009
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	*Click '''Save Parameters''' and name as you see fit. Typically this parameter file would be <tt>P300_<Your Amplifier>_<Volunteer's Intials>_Free_Spelling.prm</tt> This file is now the file used for that volunteer in later P300 Spelling sessions		*Click '''Save Parameters''' and name as you see fit. Typically this parameter file would be <tt>P300_<Your Amplifier>_<Volunteer's Intials>_Free_Spelling.prm</tt> This file is now the file used for that volunteer in later P300 Spelling sessions

			For full details regarding the P300 GUI, the User's Guide is available [[P300_GUI_Guide.pdf\|here.]]

	To continue onto performing P300 spelling experiments, continue to [[User Tutorial:Performing a P300 Spelling Session\|Performing a P300 Spelling Session]].		To continue onto performing P300 spelling experiments, continue to [[User Tutorial:Performing a P300 Spelling Session\|Performing a P300 Spelling Session]].

Sbriskin at 22:46, 9 January 2009

2009-01-09T22:46:14Z

← Older revision		Revision as of 22:46, 9 January 2009
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	[[Image:P300_GUI.PNG]]		[[Image:P300_GUI.PNG\|right\|700x600px]]

	*Run <tt>src/contrib./Tools/P300GUI/P300_GUI.m</tt>		*Run <tt>src/contrib./Tools/P300GUI/P300_GUI.m</tt>
	*Close the Editor window that appears, and type in <tt>P300_GUI</tt>		*Close the Editor window that appears, and type in <tt>P300_GUI</tt>
	*In the upper left-hand column, click on ''~~‘Select~~ Training ~~Data’~~''		*A GUI such as the one to the right will appear
			*In the upper left-hand column, click on '''Select Training Data'''
	*Select the data files collected from the runs for <tt>THE</tt>, <tt>QUICK</tt>, <tt>BROWN</tt>, and <tt>FOX</tt>		*Select the data files collected from the runs for <tt>THE</tt>, <tt>QUICK</tt>, <tt>BROWN</tt>, and <tt>FOX</tt>
	*In the lower left-hand column, press the '''Generate Feature Weights''' button		*In the lower left-hand column, press the '''Generate Feature Weights''' button
Line 9:		Line 10:
	**The important feature is to notice that the red line in the upper graph, the accuracy, increases with more flashes		**The important feature is to notice that the red line in the upper graph, the accuracy, increases with more flashes
	*Close the window of the graphs		*Close the window of the graphs
	*In the lower-middle column, type <tt>Training</tt> for '~~‘File~~ Prefix:'’, and <tt>1</tt> for '~~‘File~~ #s to ~~Save’~~'		*In the lower-middle column, type <tt>Training</tt> for ''File Prefix:'', and <tt>1</tt> for ''File #s to Save''
	Click on '''.prm (v2)’''		Click on '''.prm (v2)'''
	**This will generate a <tt>.prm</tt> (parameter) file in the same folder as the data files		**This will generate a <tt>.prm</tt> (parameter) file in the same folder as the data files
	*Returning to BCI2000, click on ''~~‘Config~~''’ and ‘''Load ~~Parameters’~~'', selecting the new <tt>.prm</tt> file
	*In the ''~~‘Application’~~'' tab, change ''TextToSpell'' to <tt>JUMPS</tt>, and click ‘''Set ~~Config’~~''		{\|
	*Press ‘''~~Start’~~'' to collect one more run of data		\|height=200px\|
	*Once the last run of data has finished, go back to the P300_GUI program and click ''~~‘Add~~ Test ~~Data’~~'' in the upper right-hand column		\|}
	*Select the newest set of data, and click ''~~‘Apply~~ Feature ~~Weights’~~'' in the lower right-hand column - A new window of graphs will appear

			*Returning to BCI2000, click on '''Config''' and '''Load Parameters''', selecting the new <tt>.prm</tt> file
			*In the '''Application''' tab, change ''TextToSpell'' to <tt>JUMPS</tt>, and click '''Set Config'''
			*Press '''Start''' to collect one more run of data
			*Once the last run of data has finished, go back to the P300_GUI program and click '''Add Test Data''' in the upper right-hand column
			*Select the newest set of data, and click '''Apply Feature Weights''' in the lower right-hand column - A new window of graphs will appear
	*The important thing to see from these graphs is where the red line in the upper graph reaches 100%.		*The important thing to see from these graphs is where the red line in the upper graph reaches 100%.
	**In the example below, this is from 9 to 11, and then drops. This means that 10 flashes gives the best accuracy.		**In the example below, this is from 9 to 11, and then drops. This means that 10 flashes gives the best accuracy.

	[[Image:9to11.PNG\|center]]		[[Image:9to11.PNG\|center]]


	*If this does not give an acceptable level of accuracy, (typically 95% or higher), repeat more test runs to collect more data files. Add these data files as above, and click '''Apply Feature Weights''' in the lower right-hand column to look for how many flashes is needed. Repeat as necessary.		*If this does not give an acceptable level of accuracy, (typically 95% or higher), repeat more test runs to collect more data files. Add these data files as above, and click '''Apply Feature Weights''' in the lower right-hand column to look for how many flashes is needed. Repeat as necessary.

Sbriskin at 22:39, 9 January 2009

2009-01-09T22:39:11Z

← Older revision		Revision as of 22:39, 9 January 2009
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			[[Image:P300_GUI.PNG]]

	*Run <tt>src/contrib./Tools/P300GUI/P300_GUI.m</tt>		*Run <tt>src/contrib./Tools/P300GUI/P300_GUI.m</tt>
	*Close the Editor window that appears, and type in <tt>P300_GUI</tt>		*Close the Editor window that appears, and type in <tt>P300_GUI</tt>

Sbriskin at 22:30, 9 January 2009

2009-01-09T22:30:49Z

← Older revision		Revision as of 22:30, 9 January 2009
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	*If this does not give an acceptable level of accuracy, (typically 95% or higher), repeat more test runs to collect more data files. Add these data files as above, and click '''Apply Feature Weights''' in the lower right-hand column to look for how many flashes is needed. Repeat as necessary.		*If this does not give an acceptable level of accuracy, (typically 95% or higher), repeat more test runs to collect more data files. Add these data files as above, and click '''Apply Feature Weights''' in the lower right-hand column to look for how many flashes is needed. Repeat as necessary.
	*In the lower middle column, type <tt>Trained</tt> for ‘'File ~~Prefix’~~' and <tt>1</tt> for '~~‘File~~ #s to ~~Save’~~'		*In the lower middle column, type <tt>Trained</tt> for ''File Prefix'' and <tt>1</tt> for ''File #s to Save''
	Click ''‘.prm (v2)''’ again to generate a <tt>Trained</tt> parameter file		Click '''.prm (v2)''' again to generate a <tt>Trained</tt> parameter file
	*Close BCI2000, MatLab, and the P300_GUI programs		*Close BCI2000, MatLab, and the P300_GUI programs
	*Open BCI2000 with the batch\P3Speller_<Your_Amplifier>.bat file		*Open BCI2000 with the batch\P3Speller_<Your_Amplifier>.bat file
	*Click on ~~‘Config’~~, and ~~‘Load Parameters’~~		*Click on '''Config''', and '''Load Parameters'''
	*Load the base parameter file for your amplifier, and then the <tt>Trained</tt> parameter file.		*Load the base parameter file for your amplifier, and then the <tt>Trained</tt> parameter file.
	*In the ~~‘Filtering’~~ tab, set EpochsToAverage to the ideal number found by ~~now~~ many flashes were needed to attain maximum accuracy. In our example, this would be 10.		*In the '''Filtering''' tab, set ''EpochsToAverage'' to the ideal number found by how many flashes were needed to attain maximum accuracy. In our example, this would be 10.
	*In the ~~‘Application’~~ tab:		*In the '''Application''' tab:
	**~~Set~~ NumberOfSequences to this number as well		**''NumberOfSequences'' to this number as well
	**Delete the contents of the '~~‘Text~~ to Spell'’ field		**Delete the contents of the ''Text to Spell'' field
	**Set '~~‘InterpretMode’~~' to <tt>online free mode</tt>		**Set ''InterpretMode'' → <tt>online free mode</tt>
	**Make sure the '~~‘DisplayResults’~~' box is checked		**Make sure the ''DisplayResults'' box is checked
	*Click ~~‘Save Parameters’~~ and name as you see fit. Typically this parameter file would be <tt>P300_<Your Amplifier>_<Volunteer's Intials>_Free_Spelling.prm</tt> This file is now the file used for that volunteer in later P300 Spelling sessions		*Click '''Save Parameters''' and name as you see fit. Typically this parameter file would be <tt>P300_<Your Amplifier>_<Volunteer's Intials>_Free_Spelling.prm</tt> This file is now the file used for that volunteer in later P300 Spelling sessions


	To continue onto performing P300 spelling experiments, continue to [[User Tutorial:Performing a P300 Spelling Session\|Performing a P300 Spelling Session]].		To continue onto performing P300 spelling experiments, continue to [[User Tutorial:Performing a P300 Spelling Session\|Performing a P300 Spelling Session]].

Sbriskin at 22:26, 9 January 2009

2009-01-09T22:26:08Z

New page

*Run <tt>src/contrib./Tools/P300GUI/P300_GUI.m</tt>
*Close the Editor window that appears, and type in <tt>P300_GUI</tt>
*In the upper left-hand column, click on ''‘Select Training Data’''
*Select the data files collected from the runs for <tt>THE</tt>, <tt>QUICK</tt>, <tt>BROWN</tt>, and <tt>FOX</tt>
*In the lower left-hand column, press the '''Generate Feature Weights''' button
*A pair of graphs should be displayed, similar to those below.
**The important feature is to notice that the red line in the upper graph, the accuracy, increases with more flashes
*Close the window of the graphs
*In the lower-middle column, type <tt>Training</tt> for '‘File Prefix:'’, and <tt>1</tt> for '‘File #s to Save’'
*Click on '''*.prm (v2)’''
**This will generate a <tt>.prm</tt> (parameter) file in the same folder as the data files
*Returning to BCI2000, click on ''‘Config''’ and ‘''Load Parameters’'', selecting the new <tt>.prm</tt> file
*In the ''‘Application’'' tab, change ''TextToSpell'' to <tt>JUMPS</tt>, and click ‘''Set Config’''
*Press ‘''Start’'' to collect one more run of data
*Once the last run of data has finished, go back to the P300_GUI program and click ''‘Add Test Data’'' in the upper right-hand column
*Select the newest set of data, and click ''‘Apply Feature Weights’'' in the lower right-hand column - A new window of graphs will appear
*The important thing to see from these graphs is where the red line in the upper graph reaches 100%.
**In the example below, this is from 9 to 11, and then drops. This means that 10 flashes gives the best accuracy.

[[Image:9to11.PNG|center]]

*If this does not give an acceptable level of accuracy, (typically 95% or higher), repeat more test runs to collect more data files. Add these data files as above, and click '''Apply Feature Weights''' in the lower right-hand column to look for how many flashes is needed. Repeat as necessary.
*In the lower middle column, type <tt>Trained</tt> for ‘'File Prefix’' and <tt>1</tt> for '‘File #s to Save’'
*Click ''‘*.prm (v2)''’ again to generate a <tt>Trained</tt> parameter file
*Close BCI2000, MatLab, and the P300_GUI programs
*Open BCI2000 with the batch\P3Speller_<Your_Amplifier>.bat file
*Click on ‘Config’, and ‘Load Parameters’
*Load the base parameter file for your amplifier, and then the <tt>Trained</tt> parameter file.
*In the ‘Filtering’ tab, set EpochsToAverage to the ideal number found by now many flashes were needed to attain maximum accuracy. In our example, this would be 10.
*In the ‘Application’ tab:
**Set NumberOfSequences to this number as well
**Delete the contents of the '‘Text to Spell'’ field
**Set '‘InterpretMode’' to <tt>online free mode</tt>
**Make sure the '‘DisplayResults’' box is checked
*Click ‘Save Parameters’ and name as you see fit. Typically this parameter file would be <tt>P300_<Your Amplifier>_<Volunteer's Intials>_Free_Spelling.prm</tt> This file is now the file used for that volunteer in later P300 Spelling sessions

To continue onto performing P300 spelling experiments, continue to [[User Tutorial:Performing a P300 Spelling Session|Performing a P300 Spelling Session]].