Re: st: Axis's limits when one var has missing when other is max

[Roger Newson <roger.newson@kcl.ac.uk>]

Chris might like to try the -regaxis- package, downloadable from SSC using 
the -ssc-command in Stata. -regaxis- produces regular linear or logarithmic 
axis ranges and label sets, to span a subset of the data and/or extra 
points such as the zero, and stores them in local macros for use by the 
user in the -xlabel()-, -ylabel()- and -scale()- options of -graph-.

I hope this helps.

Roger


At 02:21 23/11/2005, Chris wrote:

> For what it's worth, here's a little gripe about -graph-.  I wish that
> Stata determined the extent of the axes by the points that will be
> plotted, rather than conditioning on the maxima and minima of the two
> variables.  It's a tiny complaint, but I post for two reasons:
>
> - Other users may be puzzled by this feature.
>
> - The response Stata Technical Support gave me was that "it's just the
> way Stata graph commands were written."
>
> Maybe there are arguments in favor of the current functionality, and
> maybe there's a "change is bad" argument, but it's easy to increase the
> extent of an axis by other means.  It also seems as if it would simple
> to change Stata's code to implement the functionality I'm looking for,
> although I could be very wrong about that.
>
> Here's an illustration of the issue.
>
>         input x y
>         2 4
>         1 15
>         100 .
>         4 20
>         end
>         scatter y x // The x-axis maximum is 100
>         more
>         scatter y x if y<. & x<. // The x-axis maximum is 4 (preferred)
>
> Chris

--
Roger Newson
Lecturer in Medical Statistics
Department of Public Health Sciences
Division of Asthma, Allergy and Lung Biology
King's College London

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Opinions expressed are those of the author, not the institution.

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