Reporting Example 3

Introduction

A customer wanted to add an annotation to the normative graph at the location of the corresponding normative event label. This would be equivalent to the option to annotate a graph comprised of time based signals. Rather than leave the customer with no options, we explored the following "kludgy workaround".

This example allows you to specify the normative event from the datatable (i.e. you can calculate the time of the normative event). This example shows you another method which lets you explicitly define when the annotation should be created.

You can download the sample files for this tutorial here.

Create Event stored in P2D

The first step is to store the value we want to create the annotation at. In this tutorial, the value is going to be stored GLOBAL::P2D::NORM_EVENTS::LTO.

• Option 1: Explicitly specify this value as 40% of the gait cycle (running data)
• Option 2: Calculate the average time toe off occurs from a normal databse

Option 1: Explicit

Explicitly define the value:

Evaluate_Expression
/EXPRESSION=40
! /SIGNAL_TYPES=
! /SIGNAL_FOLDER=ORIGINAL
! /SIGNAL_NAMES=
/RESULT_TYPES=P2D
/RESULT_FOLDERS=NORM_EVENTS
/RESULT_NAME=GLOBAL::LTO
! /APPLY_AS_SUFFIX_TO_SIGNAL_NAME=FALSE
;

Option 2: Calculate from database

Calculate the average value from the normal database:

1. Load the database (Step 1)
   1. Run a script to calculate the % the event occurs during the gait cycle (example, when toe off occurs during the gait cycle). An example script is provided below:

Select_Active_File
/FILE_NAME=EACH_CMO_WORKSPACE
/QUERY=
;

Metric_Time_Between_Events
/RESULT_METRIC_NAME=LStance
/RESULT_METRIC_FOLDER=EVENTS
/EVENT_SEQUENCE=LHS+LTO
/EXCLUDE_EVENTS=
! /GENERATE_MEAN_AND_STDDEV=TRUE
! /APPEND_TO_EXISTING_VALUES=FALSE
;

Metric_Time_Between_Events
/RESULT_METRIC_NAME=LGaitCycle
/RESULT_METRIC_FOLDER=EVENTS
/EVENT_SEQUENCE=LHS+LHS
/EXCLUDE_EVENTS=
! /GENERATE_MEAN_AND_STDDEV=TRUE
! /APPEND_TO_EXISTING_VALUES=FALSE
; 

Evaluate_Expression
/EXPRESSION=100*GLOBAL::METRIC::EVENTS::LStance_MEAN/GLOBAL::METRIC::EVENTS::LGaitCycle_MEAN
/RESULT_NAME=GLOBAL::LTO
/RESULT_TYPE=P2D
/RESULT_FOLDER=NORM_EVENTS
;

Save P2D File

You can then export the P2D data as a Normal Database (Normal_Data_Events.vnd)

Plot Event stored in P2D

Getting Started

It's assumed that you have followed the steps described here.

If you followed the steps correctly, you would be starting with a graph that looks like this.

Load the P2D Data

Loads the P2D file which contains the average events:

1. File -> Open
   1. Select the Normal_Data_Events.vnd file

Option 1: Manually Graph Event

Annotation Style: Vertical Line Color: Black Size: Normal Event Name or Numeric Value: GLOBAL::P2D::NORM_EVENTS::LTO Check "Average Event or Numeric Value"

Option 2: Pipeline Graph Event

Add_Graph_Annotation
/PAGE_NUMBER=1
/COLUMN_NUMBER=1
/ROW_NUMBER=1
/DRAW_ORDER=2
/ANNOTATION_EVENT=GLOBAL::P2D::NORM_EVENTS::LTO
/ANNOTATION_STYLE=Vertical Line
/ANNOTATION_COLOR=Black
! /ANNOTATION_SIZE=Normal
/ANNOTATION_GLOBAL=FALSE
/ANNOTATION_AVERAGE_EVENT=TRUE
;

Final

If everything is correct, you should see a black vertical line.