That did it, thanks. I was was sort of figuring that I could graph
each of the spline separately, and have them connect end to end. The
advantage of that would be that I could have dots or some other marker
indicating the end of the line(s), and thus the knots (ala the graph
in the -mkspline- reference entry). Any thoughts? If not, this way
(i.e., using -adjust-) works just fine for my purposes. Thanks
Tom
On Wed, Jan 21, 2009 at 5:04 PM, Maarten buis <[email protected]> wrote:
> --- Tom Moliterno <[email protected]> wrote:
>> Has anyone had any success graphing a piecewise linear spline
>> function (as depicted in the manual entry for mkspline)?
>
> The easiest way is to use -adjust- :
>
> *--------------- begin example -------------------
> sysuse auto, clear
> mkspline sp 2 = weight
> reg mpg sp* rep78 foreign
> adjust rep78 foreign = 0, by(weight) ci replace
> twoway rarea lb ub weight || ///
> line xb weight, legend(off)
> *---------------- end example --------------------
> (For more on how to use examples I sent to the Statalist, see
> http://home.fsw.vu.nl/m.buis/stata/exampleFAQ.html )
>
> Hope this helps,
> Maarten
>
> -----------------------------------------
> Maarten L. Buis
> Department of Social Research Methodology
> Vrije Universiteit Amsterdam
> Boelelaan 1081
> 1081 HV Amsterdam
> The Netherlands
>
> visiting address:
> Buitenveldertselaan 3 (Metropolitan), room N515
>
> +31 20 5986715
>
> http://home.fsw.vu.nl/m.buis/
> -----------------------------------------
>
>
>
> *
> * 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/
>
--
**********************************************************
Thomas P. Moliterno, PhD
Moore School of Business
University of South Carolina
[email protected]
**********************************************************
"The way to succeed is to double your error rate."
-- Thomas J. Watson
*
* 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/
