RE: st: Showing all categories in legend with catplot

["David Radwin" <dradwin@mprinc.com>]

Eric's solution shows the text of the third category in the legend, but
there is no corresponding key (colored bar) in the legend. Maybe that is
good enough for Martin--he doesn't make this an explicit
specification--but I wonder if it is possible to force a key to show for
that third category. (I tried and could not figure out how.)

David

--
David Radwin
Research Associate
MPR Associates, Inc.
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> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-
> statalist@hsphsun2.harvard.edu] On Behalf Of Nick Cox
> Sent: Thursday, July 21, 2011 7:17 AM
> To: statalist@hsphsun2.harvard.edu
> Subject: Re: st: Showing all categories in legend with catplot
>
> Eric is correct.
>
> Note by the way that -catplot- (SSC) as such does nothing with
> legends. What you are seeing is standard Stata graph behaviour whereby
> the legend just reflects what is present in the data, but as Eric
> explains you can override that.
>
> Nick
>
> On Wed, Jul 20, 2011 at 10:42 PM, Eric Booth <ebooth@ppri.tamu.edu>
wrote:
>
> > The help file for -catplot- (from SSC) mentions that it accepts other
> graph options, so you could use the legend() option to specify what you
> want, ex:
> >
> > catplot q2 , over(newold) stack asyvars perc(newold) caption("Q2") ///
> > name(g2, replace)  legend(on order(1 "Agree" 2 "Neutral"  3 "Disagree"
)
> cols(1) )
> >
>
> > On Jul 20, 2011, at 7:40 PM, Martin Lee wrote:
>
> >> I'm having some problems with getting catplot to display all the
> >> categories in the legend for some questionnaire data where not all of
> >> the Likert scale response range is recorded for some of the
questions.
> >>
> >> Example data and catplot command is below (q1 = question 1, q2 =
> >> question 2, newold = clinic type)
> >>
> >> clear
> >>
> >> inp byte(q1 q2 newold)
> >> 1 2 1
> >> 1 1 1
> >> 1 2 1
> >> 2 1 1
> >> 2 2 1
> >> 2 1 1
> >> 3 2 1
> >> 1 1 2
> >> 1 2 2
> >> 2 2 2
> >> 3 1 2
> >> 3 2 2
> >> end
> >>
> >> lab def qlab 1 "Agree" 2 "Neutral" 3 "Disagree"
> >> lab val q1 q2 qlab
> >>
> >> lab def nlab 1 "New" 2 "Old"
> >> lab val newold nlab
> >>
> >> catplot q1 , over(newold) stack asyvars perc(newold) caption("Q1")
> >> name(g1, replace)
> >> catplot q2 , over(newold) stack asyvars perc(newold) caption("Q2")
> >> name(g2, replace)
> >>
> >> And as you will see, for Q2, the legend only shows the "Agree" and
> >> "Neutral" responses.
> >>
> >> How do I get all the categories to display?
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