Bookmark and Share

Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down on April 23, and its replacement, statalist.org is already up and running.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: st: Suppress unused values of categorical var in graph? (Stata 11)


From   Nick Cox <njcoxstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Suppress unused values of categorical var in graph? (Stata 11)
Date   Mon, 15 Aug 2011 12:51:00 +0100

Looks the same to me. Where did you get it from?

On Mon, Aug 15, 2011 at 12:44 PM, Kaulisch, Marc
<kaulisch@forschungsinfo.de> wrote:
> It is -revv-.
>
> Marc
>
> -----Ursprüngliche Nachricht-----
> Von: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Nick Cox
> Gesendet: Montag, 15. August 2011 10:11
> An: statalist@hsphsun2.harvard.edu
> Betreff: Re: st: Suppress unused values of categorical var in graph? (Stata 11)
>
> I can't find a -rew- on SSC.
>
> Nick
>
> On Sun, Aug 14, 2011 at 8:37 PM, Kaulisch, Marc <kaulisch@forschungsinfo.de> wrote:
>> In order to keep the same order of the categorical variables on the graph as I would get with -ciplot- (from ssc) I add another line to the code, using the -revv- command (from ssc):
>>
>> egen group = group(for_eu), label
>> revv group, gen(groupa)
>> twoway rcap ub lb groupa, hori || scatter groupa mean, ///
>> legend(off) ytitle("") ylabel(1/5, valuelabel angle(0) nogrid)
>>
>> Marc
>>
>> -----Ursprüngliche Nachricht-----
>> Von: owner-statalist@hsphsun2.harvard.edu
>> [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Kaulisch,
>> Marc
>> Gesendet: Sonntag, 14. August 2011 21:23
>> An: statalist@hsphsun2.harvard.edu
>> Betreff: AW: st: Suppress unused values of categorical var in graph?
>> (Stata 11)
>>
>> Nick,
>> Stupid me, haven't thought about that solution because I used "egen group" only with two or more vars... Your solution is very handsome.
>> Of course, my problem is self-inflicted but in some cases it is useful that values of categorical variables are not equally spaced.
>>
>> Marc
>>
>> -----Ursprüngliche Nachricht-----
>> Von: owner-statalist@hsphsun2.harvard.edu
>> [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Nick Cox
>> Gesendet: Sonntag, 14. August 2011 17:53
>> An: statalist@hsphsun2.harvard.edu
>> Betreff: Re: st: Suppress unused values of categorical var in graph?
>> (Stata 11)
>>
>> Marc's problem could be regarded as self-inflicted. He creates a variable with values 1, 4, 6, 8, 12 and then complains that the values when supplied as one axis of a -twoway graph- are not plotted with equal spacing.
>>
>> More seriously: Marc's problem is certainly that -twoway- has no notion of a categorical variable. However, two more lines of code produce equal spacing:
>>
>> egen group = group(for_eu), label
>> twoway rcap ub lb group, hori || scatter group mean, ///
>> legend(off) ytitle("") ylabel(1/5, valuelabel angle(0) nogrid)
>>
>> I'll look into the problem with -ciplot- reported by Marc.
>>
>> Nick
>>
>> On Sun, Aug 14, 2011 at 1:02 PM, Kaulisch, Marc <kaulisch@forschungsinfo.de> wrote:
>>> I came across a problem with -ciplot- (from ssc) because option
>>> ytitle("") does not suppress the ytitle. As Nick Cox (author of
>>> ciplot) mentioned earlier that he does not touch ciplot anymore and
>>> one should use the statsby strategy (see Stata Journal 10, 1,
>>> p.143-151). I started to follow his advise but come to a point of
>>> dissatification and maybe some one can help me (still Stata 11 user).
>>>
>>> I have a categorical variable with categories ranging from 8 to 44
>>> where some values in this range are not attached to any categories.
>>> Drawing a graph means that on the axis of this variable there is a lot of "unused"
>>> space. Is there a way to reduce this?  Is there a way to tell Stata
>>> that this is a categorical variable (factor variables are not allowed...)?
>>> (Of course a recode of the cat var would do the trick but why should
>>> this be the only option?)
>>>
>>> My example code with the auto dataset
>>>
>>> sysuse auto
>>> recode foreign (0=1) (1=4), gen(for_eu) replace for_eu = 6 if
>>> regexm(make, "Renault") replace for_eu = 8 if regexm(make, "VW")
>>> replace for_eu = 12 if regexm(make, "Audi") statsby mean=r(mean)
>>> ub=r(ub) lb=r(lb) N=r(N), clear by(for_eu): ci weight levelsof
>>> for_eu,
>>> local(fe) twoway rcap ub lb for_eu, hori || scatter for_eu mean, ///
>>> legend(off) ytitle("") ylabel(`fe', valuelabel angle(0) nogrid)
>>>

*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/


© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   Site index