The custom duration epochs csv file summarises the events which occur in a user defined time slice. The user-defined epoch duration can range from 1s to 1 day.
| Column Heading | Description |
|---|---|
| Time | Date and time encoded as a floating point number, The integer part of number represents the date. The decimal portion represents the time. (Full details at: http://support.microsoft.com/kb/210276) To view the time in Excel, follow this these instructions |
| Time (approx) | For convenience, the date and time accurate to the nearest second. This should not be used for calculations of time diffferences. |
| Step Count | Number of steps counted in the custom epoch |
| Activity Score | Activity score in MET.s in the custom epoch |
| Sedentary Time | Number of seconds sedentary in the custom epoch |
| Total Ambulatory Time | Number of seconds ambulatory in the custom epoch (Note: this is the time spent standing and stepping) |
| Standing Time | Number of seconds standing in the custom epoch (Note: this time is also included in the ambulatory time) |
| Stepping Time | Number of seconds stepping in the custom epoch (Note: this time is also included in the ambulatory time) |
| Cycling Time | Number of seconds cycling in the custom epoch (Note: this time is also included in the upright time) |
| Primary Lying Time | (CREA and GHLA algorithms only) Number of seconds of primary lying in the custom epoch |
| Secondary Lying Time | (CREA and GHLA algorithms only) Number of seconds of secondary lying in the custom epoch |
| Non Wear Time | (CREA and GHLA algorithms only) Number of seconds of non-wear in the custom epoch |
| Seated Transport Time | Number of seconds in seated transport in the custom epoch (Note: this time is included in the sedentary time) |
| Sedentary to Upright Movements | Number of sit to stands in the custom epoch |
| Upright to Sedentary Movements | Number of stand to sits in the custom epoch |
| Sum(abs(dChannel1)) | Sum of the absolute sample to sample differences on the x axis in the custom epoch |
| Sum(abs(dChannel2)) | Sum of the absolute sample to sample differences on the y axis in the custom epoch |
| Sum(abs(dChannel3)) | Sum of the absolute sample to sample differences on the z axis in the custom epoch |