hicd

Modified Head Injury Criterion used to measure potential for head injury.

Syntax

[x,y] = hicd(time, accel, window, mode=0)

x = hicd(time, accel, window, mode=1)

y = hicd(time, accel, window, mode=2)

w = hicd(time, accel, window, mode=3)

Inputs

time
The time vector of data to analyze (in seconds).
Type: double
Dimension: vector
accel
The head acceleration vector, equal in length to the time vector.
Type: double
Dimension: vector
window
The window width (in seconds).
Type: double
Dimension: scalar
mode
0
Output the hicd window x,y vectors.
1
Output the hicd window x vector.
2
Output the hicd window y vector.
3
Output the height of the hicd window, and its left and right end points as a single vector.
Type: integer
Dimension: Dimension: scalar

Outputs

x
The x coordinates of the hicd window.
Type: double
Dimension: vector
y
The y coordinates of the hicd window.
Type: double
Dimension: vector
w
The height of the hicd window, and its left and right end points.

Example

Find the hicd window dimensions associated with a pair of time and acceleration vectors:

t = [0: 0.0001: 0.050];
accel = sin(20 * pi * t);
w = hicd(t, accel, 0.036, 3)
w = [Matrix] 1 x 3
166.41564  0.00820  0.04180