Produces an appropriate sequence of years between the minimum and maximum dating. If they cannot be properly divided by the stepsize set beforehand, either three values are generated for objects that are dated to a range of more then 60 objects dated to a timespan of less or equal to 60 If they can be divided without residual, the normal sequence is returned. If there is a residual, the stepsize is modified depending on how large the residual is. (TODO: There is still a problem here that needs fixing.)
get.step.sequence(datmin = 0, datmax = 100, stepsize = 25)value of the minimum dating of one object
value of the maximum dating of one object
the stepsize to be used
sequence of steps to be created by create.sub.objects()