Nick,
Thank you! The example was very helpful. I had only one small problem:
the -lcolor- option did not work.I recieved the following error
message
[option lcolor() not allowed invalid syntax]
Just how easy is it drawing an arrow in Stata 9.
On 5/18/05, Nick Cox <[email protected]> wrote:
> Here is a daft example showing one way to build
> your own arrow as three line segments:
>
> sysuse auto
>
> scatter mpg weight, text(41 2650 "top car")
> || scatteri 41 2100 41 2500 , lcolor(black) recast(line)
> || scatteri 41 2100 41.3 2200, lcolor(black) recast(line)
> || scatteri 41 2100 40.7 2200, lcolor(black) recast(line) legend(off)
>
> Neat arrows at some orientation other than vertical or horizontal
> would require some trigonometry. The angle between barb and shaft
> looks OK to many tastes at about 30 degrees. Stata 9 uses a default of
> 28.6 degrees, better known as 0.5 radian.
>
> There is more on arrows in Stata 9 in a forthcoming Tip in
> Stata Journal 5(2).
>
> Nick
> [email protected]
>
> Nick Cox
>
> > Possible, but much easier in Stata 9.
> >
> > In Stata 8, you would need to create
> > the elements of an arrow as line segments using
> > calls to various parts of -twoway-. At least,
> > that's the only way I know.
>
> Raphael Fraser
>
> > > Is it possible to have an arrow directed to a single point
> > from a text box in stata.
>
> *
> * 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/
>
*
* 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/
