Dear List members,
In the context of a diagnostic meta-analysis, I have data from 2x2
tables (cells a thru' d, signifying true positives, false positives,
etc). My file has a wide format and is perfectly suited for a meta-
analytic command like <metan a b c d, or>.
As a hypothetical example, suppose one of my studies (rows) contained
the cell frequencies 1 2 3 4, for variables a, b, c, d, respectively.
How could I efficiently create another file (long format), based on
these data, that looked like
1 1
1 0
1 0
0 1
0 1
0 1
0 0
0 0
0 0
0 0
where the 1st column signified a binary test result, and the 2nd
column a binary outcome according to a reference standard (gold
standard test).
Any help would be much appreciated.
Gerben ter Riet, Amsterdam
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