User Reference:ConditionalIntegrator - Revision history

Mellinger: /* IntegrationCondition */

2008-03-10T10:04:31Z

IntegrationCondition

← Older revision		Revision as of 10:04, 10 March 2008
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	A [[User Reference:Expression Syntax\|boolean expression]] that determines whether the signal is integrated.		A [[User Reference:Expression Syntax\|boolean expression]] that determines whether the signal is integrated.
	When the expression first evaluates to ''true'', the filter's output is set to zero.		When the expression first evaluates to ''true'', the filter's output is set to zero.
	Then, while the expression evaluates to ''true'', filter input is integrated, and the integral is returned as the filter output.		Then, while the expression evaluates to ''true'', filter input is integrated, and the integral's current value is returned as the filter output.
	When the expression first evaluates to ''false'', filter output ~~is constant~~, until the expression again evaluates to ''true''.		When the expression first evaluates to ''false'', filter output will be kept at the last integration value, and will stay there until the expression again evaluates to ''true''.

	==States==		==States==

Mellinger at 19:43, 8 November 2007

2007-11-08T19:43:23Z

← Older revision		Revision as of 19:43, 8 November 2007
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	Typically, the ''ConditionalIntegrator'' is used in off-line analysis of data collected in a cursor movement paradigm.		Typically, the ''ConditionalIntegrator'' is used in off-line analysis of data collected in a cursor movement paradigm.
	During on-line operation, the feedback cursor's position represents the integral of the [[Glossary#Control Signal\|control signal]].		During on-line operation, the feedback cursor's position represents the integral of the [[BCI2000 Glossary#Control Signal\|control signal]].
	For off-line parameter simulation experiments, the ''ConditionalIntegrator'' performs this integration, resulting in an output equivalent to cursor position on the feedback screen.		For off-line parameter simulation experiments, the ''ConditionalIntegrator'' performs this integration, resulting in an output equivalent to cursor position on the feedback screen.

Mellinger: /* See also */

2007-11-08T17:43:59Z

Mellinger: /* IntegrationCondition */

2007-11-07T16:19:25Z

IntegrationCondition

← Older revision		Revision as of 16:19, 7 November 2007
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	==Parameters==		==Parameters==
	===IntegrationCondition===		===IntegrationCondition===
	A [[boolean expression]] that determines whether the signal is integrated.		A [[User Reference:Expression Syntax\|boolean expression]] that determines whether the signal is integrated.
	When the expression first evaluates to ''true'', the filter's output is set to zero.		When the expression first evaluates to ''true'', the filter's output is set to zero.
	Then, while the expression evaluates to ''true'', filter input is integrated, and the integral is returned as the filter output.		Then, while the expression evaluates to ''true'', filter input is integrated, and the integral is returned as the filter output.

Mellinger at 16:19, 7 November 2007

2007-11-07T16:19:06Z

← Older revision		Revision as of 16:19, 7 November 2007
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	==See also==		==See also==
	[[User Reference:Expression Syntax]]\|[[User Reference:StateTransform]]		[[User Reference:Expression Syntax]], [[User Reference:StateTransform]]

Mellinger: /* Function */

2007-11-07T16:18:52Z

Function

← Older revision		Revision as of 16:18, 7 November 2007
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	==Function==		==Function==
	The ''ConditionalIntegrator'' filter accumulates (integrates) its input signal over time, depending on the value of a given [[boolean expression]].		The ''ConditionalIntegrator'' filter accumulates (integrates) its input signal over time, depending on the value of a given [[User Reference:Expression Syntax\|boolean expression]].

	Typically, the ''ConditionalIntegrator'' is used in off-line analysis of data collected in a cursor movement paradigm.		Typically, the ''ConditionalIntegrator'' is used in off-line analysis of data collected in a cursor movement paradigm.
	During on-line operation, the feedback cursor's position represents the integral of the [[control signal]].		During on-line operation, the feedback cursor's position represents the integral of the [[Glossary#Control Signal\|control signal]].
	For off-line parameter simulation experiments, the ''ConditionalIntegrator'' performs this integration, resulting in an output equivalent to cursor position on the feedback screen.		For off-line parameter simulation experiments, the ''ConditionalIntegrator'' performs this integration, resulting in an output equivalent to cursor position on the feedback screen.

Mellinger at 13:58, 10 October 2007

2007-10-10T13:58:30Z

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	IntegrationCondition= Feedback		IntegrationCondition= Feedback
	in an off-line simulation.		in an off-line simulation.

			==See also==
			[[User Reference:Expression Syntax]]\|[[User Reference:StateTransform]]

Mellinger at 13:39, 10 October 2007

2007-10-10T13:39:13Z

New page

==Function==
The ''ConditionalIntegrator'' filter accumulates (integrates) its input signal over time, depending on the value of a given [[boolean expression]].

Typically, the ''ConditionalIntegrator'' is used in off-line analysis of data collected in a cursor movement paradigm.
During on-line operation, the feedback cursor's position represents the integral of the [[control signal]].
For off-line parameter simulation experiments, the ''ConditionalIntegrator'' performs this integration, resulting in an output equivalent to cursor position on the feedback screen.

==Parameters==
===IntegrationCondition===
A [[boolean expression]] that determines whether the signal is integrated.
When the expression first evaluates to ''true'', the filter's output is set to zero.
Then, while the expression evaluates to ''true'', filter input is integrated, and the integral is returned as the filter output.
When the expression first evaluates to ''false'', filter output is constant, until the expression again evaluates to ''true''.

==States==
Any existing state may be part of the ''IntegrationCondition'' expression.

==Example==
A typical feedback task sets the ''Feedback'' state to 1 during cursor movement.
Accordingly, one would use
IntegrationCondition= Feedback
in an off-line simulation.

← Older revision		Revision as of 17:43, 8 November 2007
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	==See also==		==See also==
	[[User Reference:Expression Syntax]], [[User Reference:StateTransform]]		[[User Reference:Expression Syntax]], [[User Reference:StateTransform]]

			[[Category:Filters]][[Category:Signal Processing]][[Category:Data Analysis Tools]]