st: adding rows?

["Lucy Shum" <lshum@camden.usyd.edu.au>]

Hi all,

I've got a dataset where some subjects have multiple episodes of one
disease. Within each time period, there are multiple nominal (categorical)
variables defining characteristics of the disease, listed in rows per
record.
Is there a way I can re-organize these categorical variables from columns to
rows instead? 

Lucy

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