[EpiData-list] Writing .PGM files for New EpiDataanalysis?

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Dear list, I am experiencing a fairly steep learning curve trying to write quite basic .pgm script files for the new post-2018 EpiData Analysis guided by the introductory text on the epidata website and the commands.html reference.

I have searched the web for relevant tutorials, courses or examples, but cannot find any. Could anybody on the list be willing to share some programming examples for example on the examples page on Epidata.dk (or elsewhere)?

BTW: Does the new Analysis allow for a parallel to the user input command in Classic:

globalvariable=trim("?Input value?")

Thanks for any hints or links.

Regards, Vegard Hoegli MD, MPH