Inactive Duration

computed from raw feature: cortex.raw.screen_state and cortex.raw.accelerometer

Description

Inactive duration is the sum of the inactive periods. Can be used as an estimate of sleep.

Optional or required kwargs

• start: (int, units: ms) the start time.
• end: (int, units: ms) the end time.
• resolution: (int, units: ms) the resolution over which to compute features.

Data

• timestamp: (int, units: ms) the start time of each bin of size kwargs['resolution'].
• value: (int, units: ms) the inactive duration.

Example

cortex.secondary.inactive_duration.inactive_duration(id="U1234567890", start=1607072400000, end=1609232400000, resolution=86400000)

Output:

{
  'timestamp': 0,
  'duration': 5616000000,
  'resolution': 86400000,
  'data': [
           {'timestamp': 1607072400000, 'value': 38720178},
           {'timestamp': 1607331600000, 'value': None},
                 .
                 .
                 .
           {'timestamp': 1609232400000, 'value': 12218716}
          ]
}