The working activities of bees
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http://www.math.tau.ac.il/~felix/GENLIN/Bees.dat

The file contains the data about working activities
of bees in the bee-hive (Hebrew: kaveret) as a function
of time of the day. One of the important characteristics
of working activities is the number of bees leaving
the bee-hive for outside activities.
The data collected during several successive non-rainy days
contain the number of bees that left the bee-hive and the time
of the day (in hours).