Differences

This shows you the differences between two versions of the page.

--- metric_interquartile [2025/10/06 15:46] – wikisysop
+++ metric_interquartile [2025/10/06 17:56] (current) – [Command Parameters] wikisysop
@@ Line 29: / Line 29: @@
 ====Command Parameters====
 The following table shows the command parameters seen above and their descriptions:
@@ Line 47: / Line 46: @@
 ====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 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:
 {{:interquartile_dlg.png}}
@@ Line 53: / Line 52: @@
 The dialog box allows you to assign values to the command parameters outlined above.
-==== Example: Finding typical bat speed range(s) ====
+==== Example: COFP Range for balance trial ====
+Here the **Metric Interquartile** command is used to analyze center of foot pressure data during a standing trial and compare the ranges computed for a subject's left and right sides.
+The command for the right side looks like this:
+<code>
+Metric_Interquartile
+! /RESULT_METRIC_FOLDER=PROCESSED
+/RESULT_METRIC_NAME=COFP_RIGHT_INTER
+! /APPLY_AS_SUFFIX_TO_SIGNAL_NAME=FALSE
+/SIGNAL_TYPES=COFP
+! /SIGNAL_FOLDER=ORIGINAL
+/SIGNAL_NAMES=FP3
+ /COMPONENT_SEQUENCE=ALL
+/EVENT_SEQUENCE=START+END
+/EXCLUDE_EVENTS=
+! /GENERATE_MEAN_AND_STDDEV=TRUE
+! /GENERATE_MEAN_AND_STDDEV_ACROSS_SUBJECTS=FALSE
+! /APPEND_TO_EXISTING_VALUES=FALSE
+;
+</code>
+COFP is a 2 dimensional signal, with the X and y components representing the medial/lateral and anterior/posterior directions respectively. The resulting metrics contain an x value and a y value indicating the variation in pressure for each direction during the trial. A larger range indicates greater variation in the COFP value during the trial and a less consistent balance point.
+The results for this trial show a larger range for the right side than left and a greater range in the Y direction than X for both sides.
+{{:cofp_left.png}}{{:cofp_right.png|}}
+====Example: Comparing Interquartile Ranges for joints====
+In this example **Metric Interquartile** is used to compare the left and right ankle angles of subjects running on a treadmill.
+First, **Automatic Gait Events** is used to define key events that will define the following commands:
+<code>
+Automatic_Gait_Events
+! /FRAME_WINDOW=8
+! /USE_TPR=TRUE
+! /TPR_EVENT_INSTANCE=1
+;
+</code>
+Next, the **Interquartile** command is used to identify the middle 50% range of ankle angle values for both sides between toe and heel strikes.
+<code>
+Metric_Interquartile
+! /RESULT_METRIC_FOLDER=PROCESSED
+/RESULT_METRIC_NAME=RANKLE_INTER
+! /APPLY_AS_SUFFIX_TO_SIGNAL_NAME=FALSE
+/SIGNAL_TYPES=LINK_MODEL_BASED
+! /SIGNAL_FOLDER=ORIGINAL
+/SIGNAL_NAMES=RAnkleAngle
+! /COMPONENT_SEQUENCE=
+/EVENT_SEQUENCE=RHS+RTO
+/EXCLUDE_EVENTS=
+! /GENERATE_MEAN_AND_STDDEV=TRUE
+! /GENERATE_MEAN_AND_STDDEV_ACROSS_SUBJECTS=FALSE
+! /APPEND_TO_EXISTING_VALUES=FALSE
+;
+Metric_Interquartile
+! /RESULT_METRIC_FOLDER=PROCESSED
+/RESULT_METRIC_NAME=LANKLE_INTER
+! /APPLY_AS_SUFFIX_TO_SIGNAL_NAME=FALSE
+/SIGNAL_TYPES=LINK_MODEL_BASED
+! /SIGNAL_FOLDER=ORIGINAL
+/SIGNAL_NAMES=LAnkleAngle
+! /COMPONENT_SEQUENCE=
+/EVENT_SEQUENCE=LHS+LTO
+/EXCLUDE_EVENTS=
+! /GENERATE_MEAN_AND_STDDEV=TRUE
+! /GENERATE_MEAN_AND_STDDEV_ACROSS_SUBJECTS=FALSE
+! /APPEND_TO_EXISTING_VALUES=FALSE
+;
+</code>
+The results for this trial show that the subjects on average exhibited a larger interquartile range for flexion of their left ankles than right.
+{{:lankle_inter.png|}}{{:rankle_inter.png|}}