Thanks, Kit, for your explanation. Now I (sort of) understand why -
adoupdate - didn't pick up the updated version of glcurve. In my case I had
to replace and reinstall glcurve.
Thanks again for the explanation,
Shehzad
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Kit Baum
Sent: 21 June 2008 12:35
To: [email protected]
Subject: st: re: different result everytime - something strange
< >
Re my last posting, apologies to Philippe: he did indeed mention -
adoupdate- in his posting, which I read WBOC*. Let me just clarify
what I said about that routine to indicate why it did not ultimately
solve the problem. If you do -findit glcurve- you find six references
to the SJ and STB-published forms of this routine, most recently
updated in SJ 7:2. You also find references to the SSC version of the
routine (dated 20070216) and a version presented at the 5th UK SUG
meetings (which was, as it happens, a very long time ago as this
year's meeting will be #14).
The general problem, as people smarter than me have concluded, is
insoluble by artificial intelligence. There is no constraint that
causes a particular SSC package to be coincident with the contents of
a particular SJ package. For instance, we may have package -zorch-
which contains zorch.ado, zorch.hlp, foo.ado and foo.hlp accompanying
an article in the 2007 Stata Journal. The SSC archive may contain two
packages -- zorch, with only the zorch files, and foo, with only the
foo files. The zorch package on SSC dates from 2006; the foo package
was updated in 2008 (hypothetically). What should -adoupdate- do?
Programmers may argue that this could be solved with makefiles, but
that requires a great deal of information available to such a
facility (for instance, there is a modification date on each SSC
package, but not on each included file).
For -glcurve-, as the SSC package dates from 2007 and the SJ package
dates from 2007, there is no substitute for manual examination of the
headers of each ado-file, in the hopes that the authors have given a
version number that allows you to conclude that one is a later
version (or, perhaps, that they are the same version).
Kit Baum, Boston College Economics and DIW Berlin
http://ideas.repec.org/e/pba1.html
An Introduction to Modern Econometrics Using Stata:
http://www.stata-press.com/books/imeus.html
*: Without Benefit of Caffeine
*
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*
* For searches and help try:
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