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chokri zehri you have been a member of Statalist since December 2017. You have made 43 posts so far, having started topics as early as 2018. Many of your topics go unanswered. In others, people have often told you that you need to provide example data and explain your problem more fully. It is almost as if you expect others to read your mind. Please look at other threads to see how others are able to post questions in a way that enables people to answer them. Also read the Statalist FAQ, which you have been requested to do in the past.
But if you don't change how you post questions, I can only wish you luck.
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