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st: Midas
From
[email protected]
To
[email protected]
Subject
st: Midas
Date
Thu, 05 May 2011 10:17:42 +0200
Dear all,
I use Stata/SE 11.2 for Windows (32-bit)- Born 30 Mar 2011
and I have installed the user written-command package midas from
http://fmwww.bc.edu/RePEc/bocode/m (module for meta-analytical
integration of diagnostic
test accuracy studies)
When I run the midas command
midas tp fp fn tn
with this data:
tp fp fn tn
17 27 1 47
18 3 2 11
21 5 1 13
44 3 22 15
17 13 0 12
56 28 1 16
23 16 0 14
79 9 23 26
24 1 6 17
28 21 3 24
66 38 12 63
at the end I get: Hessian has become unstable or asymmetric
r(504);
Can You help me please how to resolve this problem?
Thanks for your consideration
Mario Petretta
Dipartimento di Medicina Clinica Scienze Cardiovascolari e Immunologiche
Facoltà di Medicina e Chirurgia
Università di Napoli Federico II
081 - 7462233
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