Multi row flag creation

unknown

Hi, 

I have to create flags 1/0 for codes based on +/-3 weeks for a given ID and date.

For example for 

ID abc and date 1/1/2014-- I need to check if there is any code present in +/-3 days and based on that I have to create flags for ABC. I have attached sample output. 

I am not sure what approach to use in this case.

Input

ID	Date	Date 2	Code
abc	1/1/2014
abc	1/2/2014
abc	1/3/2014
abc	1/4/2014
abc	1/5/2014
abc	1/6/2014	1/6/2014	A
abc	1/7/2014
abc	1/8/2014
abc	1/9/2014
abc	1/10/2014	1/12/2014	B
abc	1/11/2014
abc	1/12/2014
abc	1/13/2014
abc	1/14/2014
abc	1/15/2014
abc	1/16/2014
abc	1/17/2014
abc	1/18/2014	1/18/2014	C
abc	1/19/2014
abc	1/20/2014
abc	1/21/2014
abc	1/22/2014
abc	1/23/2014
abc	1/24/2014
abc	1/25/2014
abc	1/26/2014
abc	1/27/2014
abc	1/28/2014
abc	1/29/2014
abc	1/30/2014
abc	1/31/2014

Sample Output 

ID	Date	A	B	C
abc	1/1/2014	0	0	0
abc	1/2/2014	0	0	0
abc	1/3/2014	1	0	0
abc	1/4/2014
abc	1/5/2014
abc	1/6/2014
abc	1/7/2014	1	1	0

CharlieS

Here's a summary of how I approached this:

- Data prep by formatting the "Date" field as a date field type so datetime formulas could be used.

- Created a list of days that each code should apply to (3 days before/after each code)

- Joined those created code days to the original file and summarized.

You mentioned both weeks and days in your example. I used days in my solution, but it is easily edited to work for weeks. Solution attached.

20180711-DailyCodeSummary.yxmd