Bookmark and Share

Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.


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

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


From   "Kaulisch, Marc" <[email protected]>
To   <[email protected]>
Subject   AW: st: Suppress unused values of categorical var in graph? (Stata 11)
Date   Mon, 15 Aug 2011 13:44:02 +0200

It is -revv-.

Marc 

-----Ursprüngliche Nachricht-----
Von: [email protected] [mailto:[email protected]] Im Auftrag von Nick Cox
Gesendet: Montag, 15. August 2011 10:11
An: [email protected]
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 <[email protected]> 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: [email protected] 
> [mailto:[email protected]] Im Auftrag von Kaulisch, 
> Marc
> Gesendet: Sonntag, 14. August 2011 21:23
> An: [email protected]
> 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: [email protected] 
> [mailto:[email protected]] Im Auftrag von Nick Cox
> Gesendet: Sonntag, 14. August 2011 17:53
> An: [email protected]
> 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 <[email protected]> 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/

*
*   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 1996–2018 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   Site index