As for using the straight number variables {$1, $2, $3...} I actually will be doing much more processing work with these variables before they are outputted - that's the reason for writing them to recognizable named variable names.
The purpose of this script is to take one dataset of ~2600 separate research events and reformatting them to follow a patient through 24 months of observation by connecting all the events pertaining to a single patient.
Thank you all - this seems to be just the fix I needed to make it work.
-Andy
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