Hi all!
I just have a very urgent question. I find that my SAS program gives different results when run different times. To be concrete, when I run it in this week (for several times), all the results are the same and consistent. However, after several days, like half a month, the results will change even I don't change anywhere (the same code and computer). The program includes several macros, but I check that there is no apparent mistake.
Can you please tell me why this happens? Is there any problem?
I appreciate it very much for your warm help!
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