Hello,   I am trying to do what is described in the title. For example,  I am trying to determine how to make a continuous date and then delete the 2 duplicated to create 1 observation from the three. I have 3 observations, all sharing the same main variable (ID#). The other two variables, start date and stop date, should be continues if the time between those two dates is <2. So, like (fake dates) 02/28-03/11, 03/12-03/30. How can I code my programming to make it appear as 02/28-03/30 then delete the two duplicates.  ... View more