Hi,
There are the insurance policies with customer_id, policy_id, revision_id and policy start and end dates.
I want to calculate the day between the renewal of two policies for the same customer
Some policies may have revisions (added some extra coverage) with same policy_id and end_date.
Here is the sample data:
For example for the policies 1247 and 1389, renewal day is: 365
For 1389 and 1543 it is: 0
Thank you very much!
Onur
Use the lag function to obtain the previous value of the end date.
data want;
set have;
by customerID;
contract_end = lag1(end_date);
if first.customerID then do;
renewal=.;
end;
else renewal = datepart(start_date)-datepart(contract_end);
run;
Hi Reeza,
Thank you for your reply.
The problem is many policies have revisions -as ı stated at example- with the same policy_id and end_date and different start_date (revision_date).
I want the date difference only between different policy_ids.
Do you have any idea?
Thank you!
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