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Re: st: Top 10 Tricks in Stata (summary to date)


From   Ulrich Kohler <kohler@wz-berlin.de>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Top 10 Tricks in Stata (summary to date)
Date   Tue, 25 May 2004 13:10:20 +0200

May I add:

1) Generating Variables with -by- in combination with _n, _N and explicit 
subscribts: You have a serious data-managment problem? Think -by-!

2) Saved Results: I use them all the time and evererywhere!

3) file: You want your output ready for publication? -file- is your friend!

4) postfile: When I made my diploma I did not know anything about postfiles. I 
printed dozens of output, underlined specific results in that output with a 
yellow marker and typed that output into a Lotus 1-2-3 spreadsheet. Than I 
transfered that spreadsheet ot Stata and made some graphs. I than realized 
that I made a mistake and start again. It took me 6 months. Lately I made a 
similar analysis. I used -postfile-. I took me 2 hours.

5) profile.do: Here is mine

---------------------------profile.do
set matsize 200
set memory 60m
set scheme s1color
global F4 "dir *.dta ;"
global F5 "dir *.do ;"
global F6 "cd ~/pub/"
global F7 "cd  ~/pub/kkstata1e ;"
global F9 "do _marked;"
global dublin "~/data/dublin"
global em "~/data/em"
global issp "~/data/issp98"
global kkstata "~/pub/kkstata1e/kkstata"
global kkmain "~/pub/kkstata1e/"
global mas "~/data/mas"
global soep19 "~/data/gsoep19"
global stata "~/data/stata"
exit
-----------------------------------------------

6) capture ;-) 


> On Sun, 23 May 2004, Nick Cox wrote:
> > On Friday 21 May 2004 I asked
> >
> > Which would we nominate as (say) the top ten tricks which are the
> > deepest and most Stataish features in what we use? What is _both_
> > simple _and_ deep?  What leads to great results with at most a few
> > lines of code?
> >
> > ...
> >
> > I'd nominate straight away
> >
> > 1. -by:-.
> >
> > 2. -foreach- or -forval- with varlists or numlists.
> >
> > 3. -merge-. I rarely use it but -merge-masters have real leverage
> > in file manipulations.
> >
> > 4. -assert-. My candidate for the most underestimated command in
> > Stata (second is -count-).
> >
> > 5. -reshape-.
> >
> > Any other nominations?

-- 
kohler@wz-berlin.de
+49 (030) 25491-361


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