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visual3d:documentation:pipeline:metric_commands:metric_signal_value_at_event [2024/06/17 18:20] – created sgrangervisual3d:documentation:pipeline:metric_commands:metric_signal_value_at_event [2024/07/17 15:46] (current) – created sgranger
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 +====== Metric Signal Value At Event ======
  
- +==== Legacy Command ====
- +
- +
-===== Legacy Command =====+
  
 **Metric_Signal_At_Event** replaced the command **Signal_Value_At_Event** **Metric_Signal_At_Event** replaced the command **Signal_Value_At_Event**
  
-===== Description =====+==== Description ====
  
 The value of the specified signal at the specified frame of data is stored as a metric. The value of the specified signal at the specified frame of data is stored as a metric.
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   * There is an option to calculate the mean and standard deviation for metrics that have multiple values.   * There is an option to calculate the mean and standard deviation for metrics that have multiple values.
  
-[[MetricSignalValueAtEvent.png]]+{{:MetricSignalValueAtEvent.png}}
  
 |**Metric_Signal_Value_At_Event**                                                         |                                                                                                                                                                         | |**Metric_Signal_Value_At_Event**                                                         |                                                                                                                                                                         |
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 |**/Retain_No_Data_Values=**                                                              |(True or False) If the result is no_data, retain the value.                                                                                                              | |**/Retain_No_Data_Values=**                                                              |(True or False) If the result is no_data, retain the value.                                                                                                              |
  
-===== Example Value of a Target =====+==== Example Value of a Target ====
  
 This example calculates the value of the TARGET **RFT1** at the Event_Label **RON** This example calculates the value of the TARGET **RFT1** at the Event_Label **RON**
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 **Note:** In cases where there is **NO_DATA** at an event, you need to specify the parameter **/Retain_No_Data_Values=TRUE** should you want this included in the resulting signal. **Note:** In cases where there is **NO_DATA** at an event, you need to specify the parameter **/Retain_No_Data_Values=TRUE** should you want this included in the resulting signal.
  
-===== Example Time at an Event =====+==== Example Time at an Event ====
  
 This example calculates the time of the Event_Label **RON** This example calculates the time of the Event_Label **RON**
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 /Retain_No_Data_Values=FALSE /Retain_No_Data_Values=FALSE
 **;** **;**
-===== Component Workaround =====+==== Component Workaround ====
  
 Since Metric_Signal_Value_At_Event outputs all three components, here is a workaround of the previous example that will output one component. Evaluate_Expression is used to create a signal with one component, the z component for **RFT1**. Then the Metric_Signal_Value_At_Event will calculate the value of the TARGET **RFT1** at the Event_Label **RON**. Since Metric_Signal_Value_At_Event outputs all three components, here is a workaround of the previous example that will output one component. Evaluate_Expression is used to create a signal with one component, the z component for **RFT1**. Then the Metric_Signal_Value_At_Event will calculate the value of the TARGET **RFT1** at the Event_Label **RON**.
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 </code> </code>
  
-===== P2D Signals =====+==== P2D Signals ====
  
 Consider a P2D signal created using [[Visual3D:Documentation:Pipeline:Signal_Commands:Global_Normalized_Signal_Mean|Global_Normalized_Signal_Mean]]. Consider a P2D signal created using [[Visual3D:Documentation:Pipeline:Signal_Commands:Global_Normalized_Signal_Mean|Global_Normalized_Signal_Mean]].
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 It isn't possible to directly identify the standard deviation at that index because it isn't possible to define an Event for a time normalized signal (e.g.it has no frame rate or time. It isn't possible to directly identify the standard deviation at that index because it isn't possible to define an Event for a time normalized signal (e.g.it has no frame rate or time.
 Without having an event you cannot get the value of a signal at that event using Metric_Signal_Value_At_Event Without having an event you cannot get the value of a signal at that event using Metric_Signal_Value_At_Event
-One solution, albeit a non-intuitive solution is to [[Visual3D:Documentation:Pipeline:Expressions:Overview#Signal_Functions|SORT]] (descending) the p2D signal by the second component (eg. the MEAN).+One solution, albeit a non-intuitive solution is to [[Visual3D:Documentation:Pipeline:Expressions:Expressions_Overview#Signal_Functions|SORT]] (descending) the p2D signal by the second component (eg. the MEAN).
 **Evaluate_Expression** **Evaluate_Expression**
 /EXPRESSION=SORT(P2D::TEST::LHIP_ANGLE, -1.0, 2) /EXPRESSION=SORT(P2D::TEST::LHIP_ANGLE, -1.0, 2)
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 '//;// '//;//
 For the resulting signal, the maximum value and the associated standard deviation will be in the first frame For the resulting signal, the maximum value and the associated standard deviation will be in the first frame
- 
- 
  
  
visual3d/documentation/pipeline/metric_commands/metric_signal_value_at_event.1718648442.txt.gz · Last modified: 2024/06/17 18:20 by sgranger