The name is absent



Stata
Technical
Bulletin


July 1994

STB-20


A publication to promote communication among Stata users

Editor

Sean Becketti

Stata Technical Bulletin

8 Wakeman Road

South Salem, New York 10590
914-533-2278

914-533-2902 FAX
[email protected] EMAIL


Associate Editors

J. Theodore Anagnoson, Cal. State Univ., LA
Richard DeLeon, San Francisco State Univ.
Paul Geiger, USC School of Medicine

Lawrence C. Hamilton, Univ. of New Hampshire
Stewart West, Baylor College of Medicine

Subscriptions are available from Stata Corporation, email [email protected], telephone 979-696-4600 or 800-STATAPC,
fax 979-696-4601. Current subscription prices are posted at
www.stata.com/bookstore/stb.html.

Previous Issues are available individually from StataCorp. See www.stata.com/bookstore/stbj.html for details.

Submissions to the STB, including submissions to the supporting files (programs, datasets, and help files), are on
a nonexclusive, free-use basis. In particular, the author grants to StataCorp the nonexclusive right to copyright and
distribute the material in accordance with the Copyright Statement below. The author also grants to StataCorp the right
to freely use the ideas, including communication of the ideas to other parties, even if the material is never published
in the STB. Submissions should be addressed to the Editor. Submission guidelines can be obtained from either the
editor or StataCorp.

Copyright Statement. The Stata Technical Bulletin (STB) and the contents of the supporting files (programs,
datasets, and help files) are copyright @ by StataCorp. The contents of the supporting files (programs, datasets, and
help files), may be copied or reproduced by any means whatsoever, in whole or in part, as long as any copy or
reproduction includes attribution to both (1) the author and (2) the STB.

The insertions appearing in the STB may be copied or reproduced as printed copies, in whole or in part, as long
as any copy or reproduction includes attribution to both (1) the author and (2) the STB. Written permission must be
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Users of any of the software, ideas, data, or other materials published in the STB or the supporting files understand
that such use is made without warranty of any kind, either by the STB, the author, or Stata Corporation. In particular,
there is no warranty of fitness of purpose or merchantability, nor for special, incidental, or consequential damages such
as loss of profits. The purpose of the STB is to promote free communication among Stata users.

The Stata Technical Bulletin (ISSN 1097-8879) is published six times per year by Stata Corporation. Stata is a registered
trademark of Stata Corporation.

Contents of this issue

page

an44.1. StataQuest disk enclosed (really)

2

an46. Stata and Stage now available for IBM PowerPC

2

crc36. Clarification on analytic weights with linear regression

2

dm19. Merging raw data and dictionary files

3

dm20. Date functions

6

ip6. Storing variables in vectors and matrices

8

ip6.1. Data and matrices

10

os14. A program to format raw data files

10

sg25. Interaction expansion

12

ssi6. Routines to speed Monte Carlo experiments

18

ssi6.1. Simplified Monte Carlo simulations

22

sts7.3. A library of time series programs for Stata (Update)

25

sts8. Hansen’s test for parameter instability

26

zz3.4. Computerized index for the STB (Update)

32



More intriguing information

1. FASTER TRAINING IN NONLINEAR ICA USING MISEP
2. Real Exchange Rate Misalignment: Prelude to Crisis?
3. THE USE OF EXTRANEOUS INFORMATION IN THE DEVELOPMENT OF A POLICY SIMULATION MODEL
4. The name is absent
5. The Impact of EU Accession in Romania: An Analysis of Regional Development Policy Effects by a Multiregional I-O Model
6. The name is absent
7. RETAIL SALES: DO THEY MEAN REDUCED EXPENDITURES? GERMAN GROCERY EVIDENCE
8. HEDONIC PRICES IN THE MALTING BARLEY MARKET
9. The Prohibition of the Proposed Springer-ProSiebenSat.1-Merger: How much Economics in German Merger Control?
10. The name is absent
11. The name is absent
12. EMU: some unanswered questions
13. The open method of co-ordination: Some remarks regarding old-age security within an enlarged European Union
14. The name is absent
15. The name is absent
16. The name is absent
17. Centre for Longitudinal Studies
18. The name is absent
19. The name is absent
20. Micro-strategies of Contextualization Cross-national Transfer of Socially Responsible Investment