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hash of hashes
What, specificly don't work?
Do you have a file called 'test_predictions_1', that have ids in the range 1 to 1000?
Are the print "file: $file\n"; and print "id: $id\n"; printing what you expect?
Why do you have a second close (LOOKUP); outside the foreach loop?
Can you provide us some specific data that you think should work and is not working?
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