ActiPASS diary file format
An optional diary can be used to divide a day (or even the whole measurement) into seperate intervals and and generate PA and SB variables for each interval. ActiPASS has a sequential diary format where an interval (an "Event" according to ActiPASS terminology) lasts until the begining of next interval or until the end of data.
A built-in tool exists in ActiPASS to conduct a quality check of ActiPASS formatted diary. The tool will find invalid date/time formats and also find the durations of each event/interval and sort the data by durations. It can also find unfinished diary events (where an event starts but never finishes and lasts until the end of measurement).
