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AW: st: Check whether ado file is installed

From   "Martin Weiss" <>
To   <>
Subject   AW: st: Check whether ado file is installed
Date   Mon, 14 Dec 2009 15:19:49 +0100


" So, reliance on -ssc- omits a great deal."

So transfer via -adolist- and -adoupdate- regularly subsequently. This has helped me synchronize across computers...


-----Ursprüngliche Nachricht-----
Von: [] Im Auftrag von Nick Cox
Gesendet: Montag, 14. Dezember 2009 15:19
Betreff: RE: st: Check whether ado file is installed

Note also that packages can be found in many places, including the SSC archive accessed by -ssc-, the Stata Journal website and other websites maintained by individuals or institutions. So, reliance on -ssc- omits a great deal. 


Sven-Oliver Spieß

True. This approach depends on the assumption that every package
includes a command with the same name. This should be the case for many
but not necessarily all packages. In my case it works just fine, but it
might not for everyone.
I didn't know about Ben Jann and Stefan Wehrli's -adolist- so maybe
that's the more convenient and fail-safe alternative anyway.

On Mon, 2009-12-14 at 13:40 +0000, Nick Cox wrote:

> -which- looks for commands rather than packages. On occasion that would fail whenever a package name does not correspond to a command name. 
Sven-Oliver Spieß
> I feel like the 'which' command could be your friend.
> You could add something like this to your
> 	---Beginning example---
> 	foreach package in pkg1 pkg2 pkg3 {
> 		capture which `package'
> 		if _rc==111 ssc install `package'
> 	}
> 	---End example---
> See 'help which' and 'help profile' for more details.
Jan Sauermann wrote:
> > I work on different computers and would Stata to automatically check
> > whether a number of ado-files is installed on a local machine. My idea
> > was to write something like
> > 
> > [a command which checks whether one ado-file is installed / or not]
> > if package!=installed {
> >     ssc install package
> > }
> > 
> > My problem is basically to find a command which (1) checks whether an
> > ado file is installed and (2)  gives me a local as return.

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