This FAQ applies to data users who are creating new variables using the RECODE or COMPUTE functions in the SAMHDA online analysis system (SDA). Due to the large number of cases involved in the TEDS-A Concatenated data set, it may take up to 30 minutes for SDA to complete a RECODE or COMPUTE command. The system will use a new variable (created using RECODE or COMPUTE functions) in an analysis even before the variable is completely created; thus, users are requested to pay close attention to analytic results that use a newly created variable to make sure that enough time has elapsed and the new variable has been completely created. It is recommended that users wait for approximately 30 minutes before using newly created variable in analyses.
When running either RECODE or COMPUTE, you may encounter one of the following: (1) the screen turns blank and the status indicator in your browser says "Done" or (2) the server "times out." If these problems occur, SDA will still continue to process your request, although it may take 30 minutes or more to complete.
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