Dear Stas and Nick,
thanks for your suggestions. It was actually a simple typo problem.
Sorry to bother you but it helped a lot!
The thread is closed from my point of view.
Just for the archive: all approaches work (and Stata actually found the
files with the names of the form "${bd}\data`anal'_direct`c'.txt").
All the best
Sven
P.s. I will change backslashes to forwardslashes, thanks for that!
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