Ronnie Babigumira wrote
I am cleaning data (that's all I seem to be doing) and I am a little
puzzled here. A while ago, I asked on how to identify illegal entries when
a variable takes on values in batches (e.g. 11 to 19 21 to 25 etc). Nick
Cox pointed me to
. egen OK = eqany(cropcod2), values(110/120 220/227 330/334 440/446)
. list houscode cropcod2 if !OK
This has very well for, however, today I tried
. egen OK = eqany(inpcode), values(500/505 599 601 1100/1111 /*
. */ 1200/1201 2100/2160/ 2200/2220 2299 2300/2302)
. list houscode inpcode if !OK
I get an error message;
. egen OK = eqany(inpcode), values(500/505 599 601 1100/1111 /*
> */ 1200/1201 2100/2160 2200/2220 2299 2300/2302)
varlist not allowed
r(101);
Any one familiar with this and a way around it?
>>> Tom Steichen identified a typo in what is above. However,
I suspect that this typo is just in what Ronnie sent to the list
and that there is something more fundamental here.
My answer is just a variation on the answer to Daniel
Caro on 28 June.
You are, I believe, tripping some limitation to the built-in
command -numlist-, which is called by -egen, eqany()-. If
I am right, this can be shown directly by pushing your numlist
at -numlist-.
An alternative for this problem is the use of -merge- as a variation on a
trick documented by Kit Baum at
http://www.stata.com/support/faqs/data/characteristics.html
Put the values you want to select as a single variable in one
Stata .dta file and then -merge- it with your main data file.
The observations you want are the intersection of the two,
for which _merge == 3. You can choose either one-to-one or match merging.
Nick
[email protected]
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