This data is accelerometry data from devices participants in the
development group wore on their wrists. The first six characters
identify the participant. These files are output from an Actigraph
native scoring of sleep (Cole Kripke). The first three rows are a header and
should be skipped. After that the first column is date, the second time,
the third Axis 1 counts. The final column is the sleep or wake
determination. This column can be ignored or dropped and the data could
be scored by our R based algorithm.