reset(rate) resets the state of the
Rate object, including the elapsed time and all
statistics about previous periods. reset is useful if you want
to run multiple successive loops at the same rate, or if the object is created
before the loop is executed.
Rate object, specified as a handle. This object
contains the information for the desired rate and other information about
the execution. See rateControlrateControl (Navigation Toolbox) for more information.