Hi.
I want to collect data from different datasets using a unique ID and build a new data set with all collected information.
I will start out with a cohort of 100 observations where all I have is a list a unique ID:s (persons). Then I want to use this ID and then copy different variables (attributes) in the same row (several variables) where the ID matches. At last I want to merge it into the first dataset.
Anyone eager to help?