HAS-Motion Software Documentation

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event_onset.jpg |\\ \\ \\ <code>\\ event_onset\\ /signal_types=the type of signal to be evaluated\\ /signal_names=the name of the signal to be evaluated\\ /signal_folder=the name of the signal folder\\ /event_name=the name to be given to the threshold event\\ /select_x=(true or false)use this component of the signal\\ /select_y=(true or false)use this component of the signal\\ /select_z=(true or false)use this component of the signal\\ /threshold=the first threshold value. e.g. the point at which we start going backwards through the signal\\ /threshold_instance=the instance of the first threshold crossing\\ /baseline=a baseline value. if the signal crosses this point before the local minima, the event will be placed at this frame\\ /frame_window=the range of frames of data that must satisfy the threshold crossing. used by the "ensure" variable\\ /frame_offset=the frame offset from the threshold crossing where the event label is to be placed\\ /ascending=(true or false) determine the threshold when the signal is passing up through the threshold\\ /descending=(true or false) determine the threshold when the signal is passing down through the threshold\\ /start_at_event=the search begins from the start event\\ /end_at_event=the search ends at the end event\\ ;\\ </code> | \\ ---- ===== example 1 ===== identifies movement onset based on the speed of the hand. |<code>\\ event_onset\\ /signal_types=derived\\ /signal_names=handspeed\\ /signal_folder=processed\\ /event_name=on\\ /select_x=true\\ /select_y=false\\ /select_z=false\\ /threshold=0.2\\ /threshold_instance=0\\ /baseline=0.05\\ /frame_window=8\\ /frame_offset=0\\ /ascending=true\\ /descending=false\\ /start_at_event=go\\ /end_at_event=vel_max\\ ;\\ </code> |eventonsetdialog.jpg | \\ **note that both the threshold and baseline parameter accept either a number or a metric** ===== example 2 ===== |\\ \\ \\ <code>\\ event_onset\\ /signal_types= link_model_based\\ /signal_names= left_grf\\ ! /signal_folder= original\\ /event_name= scott2\\ ! /select_x= true\\ ! /select_y= false\\ ! /select_z= false\\ /threshold= 25\\ ! /threshold_instance= 0\\ ! /baseline= 0\\ ! /frame_window= 8\\ /ascending= true\\ ! /descending= false\\ ! /start_at_event=\\ ! /end_at_event=\\ ;\\ </code> |eventonset_scott2.jpg]] | \\ |\\ **result:**\\ visual3d will find when the signal crosses the threshold (25n) and look backwards in time (along the light blue) and find **either**:\\ - when the signal reaches the baseline of 0 n (this is indicated by the first instance of scott2)\\ **-or-**\\ - when the signal reaches the local minima (this is indicated by the second instance of scott2)\\ eventonset_scott2_graph.jpg | }}}}}}