Table of Contents
Metric Signal Values in Sequence
Overview
The metric command Signal Values in Sequence can be used to compute the value of a signal at several events within a sequence, like at foot on and foot off within a gait sequence. It can be found in the Pipeline Workshop under Metric.
Pipeline Command
The syntax for the function is as follows:
Metric_Signal_Values_In_Sequence ! /RESULT_METRIC_FOLDER=PROCESSED /RESULT_METRIC_NAME= /EXPRESSION= ! /PERCENT_LIST= ! /TIME_OFFSET_LIST= ! /FRAME_OFFSET_LIST= ! /EVENT_LIST= ! /USE_FRAMES_TYPE=1 ! /SEQUENCE_INSTANCE=0 ! /EVENT_SEQUENCE= ! /EXCLUDE_EVENTS= ! /GENERATE_MEAN_AND_STDDEV=TRUE ! /RETAIN_NO_DATA_VALUES=TRUE ;
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 |
| EXPRESSION | |
| PERCENT_LIST | A percentage offset relative to each event in the defined sequence |
| TIME_OFFSET_LIST | A time offset relative to each event in the defined sequence |
| FRAME_OFFSET_LIST | A frame offset relative to each event in the defined sequence |
| EVENT_LIST | |
| USE_FRAMES_TYPE | |
| SEQUENCE_INSTANCE | |
| EVENT_SEQUENCE | A list of events (separated by “+” signs). For example, LHS+RTO |
| EXCLUDE_EVENTS | This Event Sequence must not be during the sequence requested. For example, LTO_RHS |
| GENERATE_MEAN_AND_STDDEV | (True or False) Generate the mean and standard deviation for all of the metrics created |
| RETAIN_NO_DATA_VALUES | (True or False) If the result is no_data, retain the value. |
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
To get the metric value of the left knee angle at 25 percent of the gait cycle:
NOTE: The Metric_Signal_Values_In_Sequence command may be edited through the text editor (left) or the GUI (right).
\\ Metric_Signal_Values_In_Sequence\\ /RESULT_METRIC_NAME=LEFT_KNEE_ANGLE_25percent\\ ! /RESULT_METRIC_FOLDER=PROCESSED\\ /EXPRESSION=LINK_MODEL_BASED::ORIGINAL::LEFT_KNEE_ANGLE\\ /PERCENT_LIST=25\\ ! /TIME_OFFSET_LIST=\\ /USE_FRAMES_TYPE=2 \\ ! /SEQUENCE_INSTANCE=0 \\ /EVENT_SEQUENCE=LHS+LHS\\ ! /EXCLUDE_EVENTS=\\ ! /GENERATE_MEAN_AND_STDDEV=TRUE \\ ! /APPEND_TO_EXISTING_VALUES=FALSE \\ ! /RETAIN_NO_DATA_VALUES=TRUE\\ ; \\
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