Table of Contents
Metric Integrate
Overview
The command Metric Integrate is used to integrate a signal between events using the trapezoidal rule.
http://en.wikipedia.org/wiki/Trapezoidal_rule
The integral between two frames += ( (ValueAtFrame1+ValueAtFrame2)*DeltaT / 2 )
where T= time between frames
This command can be useful when it is necessary to compute a value, like displacement or work, for which integration is needed.
Pipeline Command
The command can be found in the Pipeline Workshop under Metric as so:
Metric_Integrate ! /RESULT_METRIC_FOLDER=PROCESSED /RESULT_METRIC_NAME= ! /APPLY_AS_SUFFIX_TO_SIGNAL_NAME=FALSE /SIGNAL_TYPES= ! /SIGNAL_FOLDER=ORIGINAL ! /SIGNAL_NAMES= ! /COMPONENT_SEQUENCE= /EVENT_SEQUENCE= /EXCLUDE_EVENTS= ! /GENERATE_MEAN_AND_STDDEV=TRUE ! /GENERATE_MEAN_AND_STDDEV_ACROSS_SUBJECTS=FALSE ! /APPEND_TO_EXISTING_VALUES=FALSE
Command Parameters
The following table shows the command parameters seen above and their descriptions:
| RESULT_METRIC_FOLDER | The name of the result signal folder |
| RESULT_METRIC_NAME | The name of the result signal |
| EVENT_SEQUENCE | A list of events (separated by “+” signs). For example, LHS+RTO |
Dialog
The command can be edited in a text editor or in a dialog form. To edit in the dialog pop up form either click on the Edit button in the pipeline workshop or double-click on the pipeline command. The dialog is shown below
The dialog box allows you to assign values to the command parameters outlined above.
Example
NOTE: When using the Metric_Integrate dialog box, don't forget to Import the desired signals.