load_datx

LOAD_DATX - Opens the raw data files from activpal devices

Syntax:

Data = load_datx(filePath)
Data = load_datx(filePath, 'Name', 'Value')

Description:

Data = load_datx(filePath) - loads data from binary activpal data files.

Data = load_datx(filePath, 'Name', 'Value') - modifies the output using Name, Value pair arguments.

Named arguments:

Name	Details	Accepted Values
'units'	Specify the units for accelerometer data.	'g' (default), 'ms-2', 'raw'

Output:

A structure with two fields:

• signals - a table with 4 columns (dateTime, x, y, z)
• meta - a structure containing the metadata

The fields of meta are:

• bitdepth - 8bits or 10bits
• resolution - ±2g, ±4g or ±8g (g = 9.81 ms-2)
• hz - the sample frequency
• axes - the number of axes recorded
• startTime - the start time of the recording
• stopTime - the stop time of the recording
• duration - the length of the recording (Matlab duration type)
• stopCondition - Trigger, Immediately, Set Time
• startCondition - Memory Full, Low Battery, USB, Programmed Time

Example:

[fileName, fileDir] = uigetfile( ...
    {'*.datx; *.dat', 'activPAL Files (*.dat, *.datx)'}, ...
    'Select an activPAL data file' );

filePath = fullfile(fileDir, fileName);
Data = activpal_utils.load_datx(filePath);

---

Requires Matlab version 8.2 (2013b) or later.