Re: st: twoway rspike - with marker labels placed in the center of the spike

[Nick Winter <nw53@cornell.edu>]

Assuming you've got data


       lo   hi   state   fips
  1.    5   10       1     CA
  2.    3    9       2     VA
  3.    7   15       3     AK


Then this is a start:

  . gen mid = (lo+hi)/2
  . graph twoway rspike lo hi fips || scatter mid state ,
        msym(none) mlab(fips) mlabangle(vertical)
        mlabpos(0) xsca(ra(0 4)) legend(off)

The only problem is that the bars run over the labels.  You could put the 
labels next to the spikes by omitting the mlabpos() option.  Or you could 
get fancier and create two bars, one above and one below the 
label.  Something like:


. gen midlo = mid - 0.5

. gen midhi = mid + 0.5

. graph twoway rspike lo midlo state || rspike midhi hi state || scatter 
mid state ,
        msym(none) mlab(fips) mlabangle (vertical) mlabpos(0) xsca(ra(0 
4)) legend(off)

Here you would have to experiment with the size of the gap in the generate 
statements; the necessary gap would depend on the y axis range and size of 
the labels.

--Nick Winter



At 02:03 PM 7/27/2005, you wrote:

> Does anyone know how to create spike plots with a marker label centered
> on the midpoint of the spikes, using for example fips codes
>
> Something like
>
> |                                  |
> |                         |        |
> |               |         VA      AK
> |               CA        |        |
> |               |                  |
> |____________________________________
>
> Only with the fips codes rotated 90 degrees
> Regards,
> John
>
> *
> *   For searches and help try:
> *   http://www.stata.com/support/faqs/res/findit.html
> *   http://www.stata.com/support/statalist/faq
> *   http://www.ats.ucla.edu/stat/stata/
--------------------------------------------------------
Nicholas Winter                           607.255.8819 t
Assistant Professor                       607.255.4530 f
Department of Government              nw53@cornell.edu e
308 White Hall            falcon.arts.cornell.edu/nw53 w
Cornell University
Ithaca, NY 14853-4601 
*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/