Hi,
Again. Thanks a lot. I used this lag() function. I did not now that this function exists before. I tried to search “help” for some function to do my task. I used wrong keywords all the times. With this function it took me 5 sec. to calculate what I need.
Now I am wandering if it is possible to find a list of all functions SAS can use? Well , of course there are thousands of them but one can scroll down thought the list and find the appropriate function he/she needs.
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