Metric Commands
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Metrics
Metrics are discrete quantitative values of signals such as maximum value, median value, value at a specified frame. In other words, metrics do not have a time-base like the other signals.
Metric Computation
Metric_Compute_DFT_Coefficients
Metric_Compute_Gait_Signal_Stats
Metric_Compute_Power_From_DFT_Coefficients
Metric_Compute_Temporal_Distance
- Compute the Gait Temporal Distance values consistent with the Visual3D report item
Temporal Distance Calculations for Gait
Compute_Volume_of_a_Convex_Hull_Across_Frames
Metric_Compute_95Confidence_Ellipse
Metric Math
Metric_Cross_Product
Metric_Dot_Product
Metric_Integrate
Metric_Maximum
Metric_Mean
Metric_Median
Metric_Minimum
Metric_Root_Mean_Squared
Metric_StdDev
Metric_Sum
Metric Events
Metric_Event_Count
Metric_Event_Sequence_Count
Metric_Explicit
Metric_Frames_Between_Events
Metric_Time_Between_Events
Metric_Time_of_Maximum_from_Event
Metric_Time_of_Minimum_from_Event
Metric_Time_of_Global_Maximum_from_Event
Metric_Time_of_Global_Minimum_from_Event
Metric_Time_of_Threshold_from_Event
Metric_Vector_Between_Events
Metric_Signal_Value_At_Event
- The value of the specified signal at the specified frame of data.
Metric_Signal_Values_in_Sequence
Miscellaneous
Metric_To_Fit_Signal_To_Line
Remove_Metrics_By_Threshold
Metric_Golf_Swing_Plane
Metric_From_C3D_Parameter
Metrics_Examples
Metrics Example 1
- Computing the metrics SI and DPSI defined in the following Journal Article.
- Wikstrom EA, Tillman MD, Kline KJ, Borsa PA (2006) Gender and Limb Differences in Dynamic Postural Stability During Landing. Clin J Sport Med
Metrics Example 2
- Given a file with multiple walking strides for which the events LON and RON have been created represent left and right contacts with an instrumented treadmill.
- Create one metric signal containing the value of the right knee angle at the event RON interleaved with the left knee angle at the event LON.
Metrics Example 3
Metrics Example 4
- Create a meta-command that computes a linear regression. See also Metrics Example 5
Metrics Example 5
- Create a meta-command that computes a linear regression. See also Metrics Example 4
- This example uses Event_Labels to define the range
Metrics_Example_20
- Create a metric for each of a series of event labels containing the frame number of the event