Hello,
I have one dataset with 12992 observations. I have (half) 6496 different IDs, so 6496 pairs of observations. What I want to do is to compare date intervals within each pair to make sure they don't overlap eachother for the same ID. The dates variables are DATE9. format and informat.
So basically 3 variables: ID, DATE_BEGIN, DATE_END. I am not sure how to proceed with this.
Thank you
1. Sort your data so that its consecutive ids
2. Use LAG() to get the previous values
3. Check for overlap
@x2PSx wrote:
Hello,
I have one dataset with 12992 observations. I have (half) 6496 different IDs, so 6496 pairs of observations. What I want to do is to compare date intervals within each pair to make sure they don't overlap eachother for the same ID. The dates variables are DATE9. format and informat.
So basically 3 variables: ID, DATE_BEGIN, DATE_END. I am not sure how to proceed with this.
Thank you
1. Sort your data so that its consecutive ids
2. Use LAG() to get the previous values
3. Check for overlap
@x2PSx wrote:
Hello,
I have one dataset with 12992 observations. I have (half) 6496 different IDs, so 6496 pairs of observations. What I want to do is to compare date intervals within each pair to make sure they don't overlap eachother for the same ID. The dates variables are DATE9. format and informat.
So basically 3 variables: ID, DATE_BEGIN, DATE_END. I am not sure how to proceed with this.
Thank you
Build your skills. Make connections. Enjoy creative freedom. Maybe change the world. Registration is now open through August 30th. Visit the SAS Hackathon homepage.
Register today!Learn how use the CAT functions in SAS to join values from multiple variables into a single value.
Find more tutorials on the SAS Users YouTube channel.
Select SAS Training centers are offering in-person courses. View upcoming courses for: