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Re: st: matrix problem


From   "Roger B. Newson" <r.newson@imperial.ac.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: matrix problem
Date   Wed, 15 May 2013 16:10:25 +0100

I do not recall that -somersd- (an -eclass-command) produces a matrix result -r(table)-. What program did you use to produce -r(table)-, and how did you do this?

Best wishes

Roger

Roger B Newson BSc MSc DPhil
Lecturer in Medical Statistics
Respiratory Epidemiology and Public Health Group
National Heart and Lung Institute
Imperial College London
Royal Brompton Campus
Room 33, Emmanuel Kaye Building
1B Manresa Road
London SW3 6LR
UNITED KINGDOM
Tel: +44 (0)20 7352 8121 ext 3381
Fax: +44 (0)20 7351 8322
Email: r.newson@imperial.ac.uk
Web page: http://www.imperial.ac.uk/nhli/r.newson/
Departmental Web page:
http://www1.imperial.ac.uk/medicine/about/divisions/nhli/respiration/popgenetics/reph/

Opinions expressed are those of the author, not of the institution.

On 15/05/2013 16:04, Richard Goldstein wrote:
Hi all,

I am using Newson's -somersd- command (from ssc); results, including the
piece I want, are saved in a matrix and I can list that matrix:

. mat list r(table)

r(table)[9,1]
             yhat1
      b  .62563699
     se  .00834334
      t  74.986391
pvalue  3.73e-257
     ll  .60924043
     ul  .64203354
     df        452
   crit  1.9652262
  eform          0

My problem comes in attempting to use the [1,1] term (.62563699 here);
for example, I can't seem to list it:

. matrix li r(table)[1,1]
[ invalid name
matrix [1,1] not found
r(111)

and I can't do what I want to do - add this value to a scalar:

scalar cstat=cstat+r(table)[1,1]
invalid syntax
r(198)

note that cstat is not the problem as it is defined (as 0) prior to
entering my loop

clearly I am doing something wrong but I have been unable to figure out
what it is or how to fix it

Rich
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