Software
© 2016 Pulsar Informatics, Inc.
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Accel Z (g)
Acceleration in the z-axis
Worksheets
Worksheets are summary data files, in which all channels have been resampled into
consistently sized epochs. The multi-axis, high-frequency motion data from the Raw
files is aggregated into a single Activity Count field that is used as the input for
actigraphy sleep scoring.
The fields in the worksheets, and the epoch binning method is as follows:
Worksheet data field
Description
Off-Wrist
True or false value indicating wear or non-wear.
Median value of all raw off-wrist measurements in
the epoch
White Light (lux)
Mean value of all raw white-light measurements in
the epoch
Red Light (uW/cm^2)
Mean value of all raw red-light measurements in the
epoch
Green Light (uW/cm^2)
Mean value of all raw green-light measurements in
the epoch
Blue Light (uW/cm^2)
Mean value of all raw blue-light measurements in the
epoch
Activity Count
Numeric value indicative of the overall level of
motion during the epoch. Raw X, Y, Z acceleration
values are filtered and integrated.
Creating worksheets
Worksheet from raw file
Raw files contain the high resolution measurements that are processed to create
new worksheet with fixed duration epochs. When creating a worksheet an epoch
duration is selected, and the raw file measurements are aggregated into bins of the
selected epoch duration.
To process a raw data file into a new worksheet:
1)
Select a raw data file
2)
Click ‘Create new worksheet’ button
3)
Select a label, and epoch setting
