This method can be used to apply the lead and lag methods an arbitrary number of times to a dynSeries object. For instance, if ts is a dynSeries object, and if we define
>> B = dynTimeIndex()-1;
>> F = dynTimeIndex()+1;
B and F can be used as lag and lead operators and the following syntax:
>> us = ts(F^2);
is equivalent to
>> us = ts.lead(2)
or
>> us = ts.lead.lead